192664897 has 8 divisors (see below), whose sum is σ = 198475200. Its totient is φ = 186915120.

The previous prime is 192664877. The next prime is 192664903. The reversal of 192664897 is 798466291.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 192664897 - 2¹¹ = 192662849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192664877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8629 + ... + 21442.

It is an arithmetic number, because the mean of its divisors is an integer number (24809400).

Almost surely, 2^192664897 is an apocalyptic number.

It is an amenable number.

192664897 is a deficient number, since it is larger than the sum of its proper divisors (5810303).

192664897 is a wasteful number, since it uses less digits than its factorization.

192664897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30263.

The product of its digits is 1306368, while the sum is 52.

The square root of 192664897 is about 13880.3781288551. The cubic root of 192664897 is about 577.5649965887.

The spelling of 192664897 in words is "one hundred ninety-two million, six hundred sixty-four thousand, eight hundred ninety-seven".