164392898 has 4 divisors (see below), whose sum is σ = 246589350. Its totient is φ = 82196448.

The previous prime is 164392897. The next prime is 164392919. The reversal of 164392898 is 898293461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 898293461 = 13 ⋅69099497.

It can be written as a sum of positive squares in only one way, i.e., 161213809 + 3179089 = 12697^2 + 1783^2 .

It is not an unprimeable number, because it can be changed into a prime (164392897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41098223 + ... + 41098226.

Almost surely, 2^164392898 is an apocalyptic number.

164392898 is a deficient number, since it is larger than the sum of its proper divisors (82196452).

164392898 is an equidigital number, since it uses as much as digits as its factorization.

164392898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82196451.

The product of its digits is 746496, while the sum is 50.

The square root of 164392898 is about 12821.5793878913. The cubic root of 164392898 is about 547.8071341651.

The spelling of 164392898 in words is "one hundred sixty-four million, three hundred ninety-two thousand, eight hundred ninety-eight".