192979985 has 16 divisors (see below), whose sum is σ = 252942912. Its totient is φ = 140174400.

The previous prime is 192979939. The next prime is 192979987. The reversal of 192979985 is 589979291.

It is not a de Polignac number, because 192979985 - 2⁶ = 192979921 is a prime.

It is a super-2 number, since 2×192979985² = 74482549221200450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (192979987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56702 + ... + 60008.

It is an arithmetic number, because the mean of its divisors is an integer number (15808932).

Almost surely, 2^192979985 is an apocalyptic number.

It is an amenable number.

192979985 is a deficient number, since it is larger than the sum of its proper divisors (59962927).

192979985 is a wasteful number, since it uses less digits than its factorization.

192979985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384.

The product of its digits is 3674160, while the sum is 59.

The square root of 192979985 is about 13891.7236151602. The cubic root of 192979985 is about 577.8796788615.

The spelling of 192979985 in words is "one hundred ninety-two million, nine hundred seventy-nine thousand, nine hundred eighty-five".