80765478 has 32 divisors (see below), whose sum is σ = 185272320. Its totient is φ = 26052840.

The previous prime is 80765467. The next prime is 80765479. The reversal of 80765478 is 87456708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80765479) 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, 22450 + ... + 25797.

It is an arithmetic number, because the mean of its divisors is an integer number (5789760).

Almost surely, 2^80765478 is an apocalyptic number.

80765478 is an abundant number, since it is smaller than the sum of its proper divisors (104506842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80765478 is a wasteful number, since it uses less digits than its factorization.

80765478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48289 (or 48283 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 80765478 is about 8986.9615554981. The cubic root of 80765478 is about 432.2568881067.

The spelling of 80765478 in words is "eighty million, seven hundred sixty-five thousand, four hundred seventy-eight".