80037977 has 4 divisors (see below), whose sum is σ = 80457216. Its totient is φ = 79618740.

The previous prime is 80037913. The next prime is 80037983. The reversal of 80037977 is 77973008.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80037977 - 2⁶ = 80037913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80037277) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 209333 + ... + 209714.

It is an arithmetic number, because the mean of its divisors is an integer number (20114304).

Almost surely, 2^80037977 is an apocalyptic number.

It is an amenable number.

80037977 is a deficient number, since it is larger than the sum of its proper divisors (419239).

80037977 is a wasteful number, since it uses less digits than its factorization.

80037977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419238.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 80037977 is about 8946.3946369473. The cubic root of 80037977 is about 430.9551096921.

Subtracting from 80037977 its reverse (77973008), we obtain a square (2064969 = 1437²).

The spelling of 80037977 in words is "eighty million, thirty-seven thousand, nine hundred seventy-seven".