80877953 has 12 divisors (see below), whose sum is σ = 89299644. Its totient is φ = 72816000.

The previous prime is 80877919. The next prime is 80877961. The reversal of 80877953 is 35977808.

It can be written as a sum of positive squares in 6 ways, for example, as 42289009 + 38588944 = 6503^2 + 6212^2 .

It is not a de Polignac number, because 80877953 - 2²⁰ = 79829377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80877898 and 80877907.

It is not an unprimeable number, because it can be changed into a prime (80877253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20003 + ... + 23703.

It is an arithmetic number, because the mean of its divisors is an integer number (7441637).

Almost surely, 2^80877953 is an apocalyptic number.

It is an amenable number.

80877953 is a deficient number, since it is larger than the sum of its proper divisors (8421691).

80877953 is a wasteful number, since it uses less digits than its factorization.

80877953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796 (or 3755 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 80877953 is about 8993.2170550921. The cubic root of 80877953 is about 432.4574504567.

The spelling of 80877953 in words is "eighty million, eight hundred seventy-seven thousand, nine hundred fifty-three".