80764774 has 4 divisors (see below), whose sum is σ = 121147164. Its totient is φ = 40382386.

The previous prime is 80764769. The next prime is 80764811. The reversal of 80764774 is 47746708.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80764774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20191192 + ... + 20191195.

It is an arithmetic number, because the mean of its divisors is an integer number (30286791).

Almost surely, 2^80764774 is an apocalyptic number.

80764774 is a deficient number, since it is larger than the sum of its proper divisors (40382390).

80764774 is a wasteful number, since it uses less digits than its factorization.

80764774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40382389.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 80764774 is about 8986.9223875585. The cubic root of 80764774 is about 432.2556321669.

The spelling of 80764774 in words is "eighty million, seven hundred sixty-four thousand, seven hundred seventy-four".