80457731 has 8 divisors (see below), whose sum is σ = 81105024. Its totient is φ = 79813440.

The previous prime is 80457709. The next prime is 80457737. The reversal of 80457731 is 13775408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80457731 - 2⁶ = 80457667 is a prime.

It is a super-2 number, since 2×80457731² = 12946892955336722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80457691 and 80457700.

It is not an unprimeable number, because it can be changed into a prime (80457737) 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 7 ways as a sum of consecutive naturals, for example, 93455 + ... + 94311.

It is an arithmetic number, because the mean of its divisors is an integer number (10138128).

Almost surely, 2^80457731 is an apocalyptic number.

80457731 is a deficient number, since it is larger than the sum of its proper divisors (647293).

80457731 is a wasteful number, since it uses less digits than its factorization.

80457731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 80457731 is about 8969.8233538905. The cubic root of 80457731 is about 431.7071685900.

The spelling of 80457731 in words is "eighty million, four hundred fifty-seven thousand, seven hundred thirty-one".