76972305 has 16 divisors (see below), whose sum is σ = 123327360. Its totient is φ = 40994688.

The previous prime is 76972303. The next prime is 76972319. The reversal of 76972305 is 50327967.

It is not a de Polignac number, because 76972305 - 2¹ = 76972303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76972303) 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, 8964 + ... + 15306.

It is an arithmetic number, because the mean of its divisors is an integer number (7707960).

Almost surely, 2^76972305 is an apocalyptic number.

It is an amenable number.

76972305 is a deficient number, since it is larger than the sum of its proper divisors (46355055).

76972305 is a wasteful number, since it uses less digits than its factorization.

76972305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7160.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 76972305 is about 8773.3861763859. The cubic root of 76972305 is about 425.3810745872.

It can be divided in two parts, 76972 and 305, that added together give a palindrome (77277).

The spelling of 76972305 in words is "seventy-six million, nine hundred seventy-two thousand, three hundred five".