79540538 has 32 divisors (see below), whose sum is σ = 149240448. Its totient is φ = 30888000.

The previous prime is 79540537. The next prime is 79540541. The reversal of 79540538 is 83504597.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79540495 and 79540504.

It is not an unprimeable number, because it can be changed into a prime (79540537) 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, 60488 + ... + 61788.

It is an arithmetic number, because the mean of its divisors is an integer number (4663764).

Almost surely, 2^79540538 is an apocalyptic number.

79540538 is a deficient number, since it is larger than the sum of its proper divisors (69699910).

79540538 is a wasteful number, since it uses less digits than its factorization.

79540538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 79540538 is about 8918.5502185052. The cubic root of 79540538 is about 430.0604530113.

The spelling of 79540538 in words is "seventy-nine million, five hundred forty thousand, five hundred thirty-eight".