79957954 has 16 divisors (see below), whose sum is σ = 124427520. Its totient is φ = 38507040.

The previous prime is 79957949. The next prime is 79957957. The reversal of 79957954 is 45975997.

It is a super-2 number, since 2×79957954² = 12786548815732232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79957895 and 79957904.

It is not an unprimeable number, because it can be changed into a prime (79957957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 12649.

It is an arithmetic number, because the mean of its divisors is an integer number (7776720).

Almost surely, 2^79957954 is an apocalyptic number.

79957954 is a deficient number, since it is larger than the sum of its proper divisors (44469566).

79957954 is a wasteful number, since it uses less digits than its factorization.

79957954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12465.

The product of its digits is 3572100, while the sum is 55.

The square root of 79957954 is about 8941.9211582299. The cubic root of 79957954 is about 430.8114369769.

The spelling of 79957954 in words is "seventy-nine million, nine hundred fifty-seven thousand, nine hundred fifty-four".