76938771 has 72 divisors (see below), whose sum is σ = 136854720. Its totient is φ = 38211264.

The previous prime is 76938767. The next prime is 76938781. The reversal of 76938771 is 17783967.

It is a happy number.

It is not a de Polignac number, because 76938771 - 2² = 76938767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76938771.

It is not an unprimeable number, because it can be changed into a prime (76938721) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 471936 + ... + 472098.

It is an arithmetic number, because the mean of its divisors is an integer number (1900760).

Almost surely, 2^76938771 is an apocalyptic number.

76938771 is a deficient number, since it is larger than the sum of its proper divisors (59915949).

76938771 is a wasteful number, since it uses less digits than its factorization.

76938771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 205 counting only the distinct ones).

The product of its digits is 444528, while the sum is 48.

The square root of 76938771 is about 8771.4748474815. The cubic root of 76938771 is about 425.3192913220.

The spelling of 76938771 in words is "seventy-six million, nine hundred thirty-eight thousand, seven hundred seventy-one".