80265987 has 24 divisors (see below), whose sum is σ = 121998240. Its totient is φ = 50785920.

The previous prime is 80265979. The next prime is 80266003. The reversal of 80265987 is 78956208.

It is not a de Polignac number, because 80265987 - 2³ = 80265979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80265917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10714 + ... + 16592.

It is an arithmetic number, because the mean of its divisors is an integer number (5083260).

Almost surely, 2^80265987 is an apocalyptic number.

80265987 is a deficient number, since it is larger than the sum of its proper divisors (41732253).

80265987 is a wasteful number, since it uses less digits than its factorization.

80265987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 80265987 is about 8959.1286964749. The cubic root of 80265987 is about 431.3639527474.

The spelling of 80265987 in words is "eighty million, two hundred sixty-five thousand, nine hundred eighty-seven".