80575687 has 2 divisors, whose sum is σ = 80575688. Its totient is φ = 80575686.

The previous prime is 80575681. The next prime is 80575709. The reversal of 80575687 is 78657508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80575687 - 2¹¹ = 80573639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80575681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40287843 + 40287844.

It is an arithmetic number, because the mean of its divisors is an integer number (40287844).

Almost surely, 2^80575687 is an apocalyptic number.

80575687 is a deficient number, since it is larger than the sum of its proper divisors (1).

80575687 is an equidigital number, since it uses as much as digits as its factorization.

80575687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 80575687 is about 8976.3961031140. The cubic root of 80575687 is about 431.9180353612.

The spelling of 80575687 in words is "eighty million, five hundred seventy-five thousand, six hundred eighty-seven".