80485731 has 12 divisors (see below), whose sum is σ = 120563352. Its totient is φ = 53656992.

The previous prime is 80485697. The next prime is 80485751. The reversal of 80485731 is 13758408.

80485731 is a `hidden beast` number, since 80 + 4 + 8 + 573 + 1 = 666.

It is not a de Polignac number, because 80485731 - 2¹³ = 80477539 is a prime.

It is a super-2 number, since 2×80485731² = 12955905789208722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80485751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165366 + ... + 165851.

It is an arithmetic number, because the mean of its divisors is an integer number (10046946).

Almost surely, 2^80485731 is an apocalyptic number.

80485731 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80485731 is a deficient number, since it is larger than the sum of its proper divisors (40077621).

80485731 is an equidigital number, since it uses as much as digits as its factorization.

80485731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331232 (or 331220 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 80485731 is about 8971.3840069412. The cubic root of 80485731 is about 431.7572420825.

The spelling of 80485731 in words is "eighty million, four hundred eighty-five thousand, seven hundred thirty-one".