80287988 has 12 divisors (see below), whose sum is σ = 153277152. Its totient is φ = 36494520.

The previous prime is 80287931. The next prime is 80287993. The reversal of 80287988 is 88978208.

It is a super-2 number, since 2×80287988² = 12892322034176288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912320 + ... + 912407.

It is an arithmetic number, because the mean of its divisors is an integer number (12773096).

Almost surely, 2^80287988 is an apocalyptic number.

It is an amenable number.

80287988 is a deficient number, since it is larger than the sum of its proper divisors (72989164).

80287988 is a wasteful number, since it uses less digits than its factorization.

80287988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824742 (or 1824740 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 80287988 is about 8960.3564661234. The cubic root of 80287988 is about 431.4033616000.

The spelling of 80287988 in words is "eighty million, two hundred eighty-seven thousand, nine hundred eighty-eight".