76971045 has 16 divisors (see below), whose sum is σ = 123913152. Its totient is φ = 40798080.

The previous prime is 76971031. The next prime is 76971061. The reversal of 76971045 is 54017967.

It is not a de Polignac number, because 76971045 - 2⁹ = 76970533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76970994 and 76971012.

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 15 ways as a sum of consecutive naturals, for example, 13296 + ... + 18185.

It is an arithmetic number, because the mean of its divisors is an integer number (7744572).

Almost surely, 2^76971045 is an apocalyptic number.

It is an amenable number.

76971045 is a deficient number, since it is larger than the sum of its proper divisors (46942107).

76971045 is a wasteful number, since it uses less digits than its factorization.

76971045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31652.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 76971045 is about 8773.3143680139. The cubic root of 76971045 is about 425.3787534792.

The spelling of 76971045 in words is "seventy-six million, nine hundred seventy-one thousand, forty-five".