164798397 has 6 divisors (see below), whose sum is σ = 238042142. Its totient is φ = 109865592.

The previous prime is 164798383. The next prime is 164798437. The reversal of 164798397 is 793897461.

It is a happy number.

164798397 is a `hidden beast` number, since 1 + 6 + 479 + 83 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 120362841 + 44435556 = 10971^2 + 6666^2 .

It is not a de Polignac number, because 164798397 - 2¹⁶ = 164732861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164798377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9155458 + ... + 9155475.

Almost surely, 2^164798397 is an apocalyptic number.

It is an amenable number.

164798397 is a deficient number, since it is larger than the sum of its proper divisors (73243745).

164798397 is a wasteful number, since it uses less digits than its factorization.

164798397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18310939 (or 18310936 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 164798397 is about 12837.3827940122. The cubic root of 164798397 is about 548.2571796652.

The spelling of 164798397 in words is "one hundred sixty-four million, seven hundred ninety-eight thousand, three hundred ninety-seven".