80857924 has 48 divisors (see below), whose sum is σ = 166199040. Its totient is φ = 33707520.

The previous prime is 80857921. The next prime is 80857927. The reversal of 80857924 is 42975808.

It is an interprime number because it is at equal distance from previous prime (80857921) and next prime (80857927).

It is not an unprimeable number, because it can be changed into a prime (80857921) 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, 176704 + ... + 177160.

It is an arithmetic number, because the mean of its divisors is an integer number (3462480).

Almost surely, 2^80857924 is an apocalyptic number.

It is an amenable number.

80857924 is an abundant number, since it is smaller than the sum of its proper divisors (85341116).

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

80857924 is a wasteful number, since it uses less digits than its factorization.

80857924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 80857924 is about 8992.1034246721. The cubic root of 80857924 is about 432.4217489046.

It can be divided in two parts, 8085 and 7924, that multiplied together give a triangular number (64065540 = T₁₁₃₁₉).

The spelling of 80857924 in words is "eighty million, eight hundred fifty-seven thousand, nine hundred twenty-four".