80858506 has 8 divisors (see below), whose sum is σ = 122361444. Its totient is φ = 40071360.

The previous prime is 80858483. The next prime is 80858507. The reversal of 80858506 is 60585808.

It can be written as a sum of positive squares in 2 ways, for example, as 54243225 + 26615281 = 7365^2 + 5159^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80858507) 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 3 ways as a sum of consecutive naturals, for example, 178665 + ... + 179116.

Almost surely, 2^80858506 is an apocalyptic number.

80858506 is a deficient number, since it is larger than the sum of its proper divisors (41502938).

80858506 is a wasteful number, since it uses less digits than its factorization.

80858506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357896.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 80858506 is about 8992.1357863413. The cubic root of 80858506 is about 432.4227863986.

The spelling of 80858506 in words is "eighty million, eight hundred fifty-eight thousand, five hundred six".