80407957 has 4 divisors (see below), whose sum is σ = 91894816. Its totient is φ = 68921100.

The previous prime is 80407907. The next prime is 80407961. The reversal of 80407957 is 75970408.

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 a de Polignac number, because none of the positive numbers 2^k-80407957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80407907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5743419 + ... + 5743432.

It is an arithmetic number, because the mean of its divisors is an integer number (22973704).

Almost surely, 2^80407957 is an apocalyptic number.

It is an amenable number.

80407957 is a deficient number, since it is larger than the sum of its proper divisors (11486859).

80407957 is a wasteful number, since it uses less digits than its factorization.

80407957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11486858.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 80407957 is about 8967.0483995571. The cubic root of 80407957 is about 431.6181271148.

The spelling of 80407957 in words is "eighty million, four hundred seven thousand, nine hundred fifty-seven".