76440823 has 12 divisors (see below), whose sum is σ = 83650320. Its totient is φ = 69608640.

The previous prime is 76440821. The next prime is 76440827. The reversal of 76440823 is 32804467.

It is not a de Polignac number, because 76440823 - 2¹ = 76440821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76440821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13998 + ... + 18676.

It is an arithmetic number, because the mean of its divisors is an integer number (6970860).

Almost surely, 2^76440823 is an apocalyptic number.

76440823 is a deficient number, since it is larger than the sum of its proper divisors (7209497).

76440823 is a wasteful number, since it uses less digits than its factorization.

76440823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758 (or 4727 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 76440823 is about 8743.0442638706. The cubic root of 76440823 is about 424.3997487090.

The spelling of 76440823 in words is "seventy-six million, four hundred forty thousand, eight hundred twenty-three".