80470777 has 8 divisors (see below), whose sum is σ = 81191880. Its totient is φ = 79752960.

The previous prime is 80470763. The next prime is 80470781. The reversal of 80470777 is 77707408.

It can be written as a sum of positive squares in 4 ways, for example, as 14714896 + 65755881 = 3836^2 + 8109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80470777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80470727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79249 + ... + 80257.

It is an arithmetic number, because the mean of its divisors is an integer number (10148985).

Almost surely, 2^80470777 is an apocalyptic number.

It is an amenable number.

80470777 is a deficient number, since it is larger than the sum of its proper divisors (721103).

80470777 is a wasteful number, since it uses less digits than its factorization.

80470777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643.

The product of its (nonzero) digits is 76832, while the sum is 40.

The square root of 80470777 is about 8970.5505405187. The cubic root of 80470777 is about 431.7305007060.

The spelling of 80470777 in words is "eighty million, four hundred seventy thousand, seven hundred seventy-seven".