105647992 has 16 divisors (see below), whose sum is σ = 198223200. Its totient is φ = 52788480.

The previous prime is 105647989. The next prime is 105648017. The reversal of 105647992 is 299746501.

It is a happy number.

It is a super-2 number, since 2×105647992² = 22322996427264128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11617 + ... + 18607.

It is an arithmetic number, because the mean of its divisors is an integer number (12388950).

Almost surely, 2^105647992 is an apocalyptic number.

It is an amenable number.

105647992 is a deficient number, since it is larger than the sum of its proper divisors (92575208).

105647992 is a wasteful number, since it uses less digits than its factorization.

105647992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886 (or 8882 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 105647992 is about 10278.5209052665. The cubic root of 105647992 is about 472.7378935125.

The spelling of 105647992 in words is "one hundred five million, six hundred forty-seven thousand, nine hundred ninety-two".