80777532 has 24 divisors (see below), whose sum is σ = 205615872. Its totient is φ = 24478000.

The previous prime is 80777507. The next prime is 80777561. The reversal of 80777532 is 23577708.

It is a super-2 number, since 2×80777532² = 13050019352022048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305844 + ... + 306107.

It is an arithmetic number, because the mean of its divisors is an integer number (8567328).

Almost surely, 2^80777532 is an apocalyptic number.

It is an amenable number.

80777532 is an abundant number, since it is smaller than the sum of its proper divisors (124838340).

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

80777532 is a wasteful number, since it uses less digits than its factorization.

80777532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611969 (or 611967 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 80777532 is about 8987.6321687083. The cubic root of 80777532 is about 432.2783913754.

The spelling of 80777532 in words is "eighty million, seven hundred seventy-seven thousand, five hundred thirty-two".