164896398 has 48 divisors (see below), whose sum is σ = 378443520. Its totient is φ = 53788536.

The previous prime is 164896397. The next prime is 164896423. The reversal of 164896398 is 893698461.

164896398 is a `hidden beast` number, since 16 + 489 + 63 + 98 = 666.

164896398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164896397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19233 + ... + 26451.

It is an arithmetic number, because the mean of its divisors is an integer number (7884240).

Almost surely, 2^164896398 is an apocalyptic number.

164896398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164896398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189221760).

164896398 is an abundant number, since it is smaller than the sum of its proper divisors (213547122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164896398 is an equidigital number, since it uses as much as digits as its factorization.

164896398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7283 (or 7271 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 164896398 is about 12841.1992430614. The cubic root of 164896398 is about 548.3658358695.

The spelling of 164896398 in words is "one hundred sixty-four million, eight hundred ninety-six thousand, three hundred ninety-eight".