90860687 has 2 divisors, whose sum is σ = 90860688. Its totient is φ = 90860686.

The previous prime is 90860621. The next prime is 90860743. The reversal of 90860687 is 78606809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90860687 - 2²⁰ = 89812111 is a prime.

It is a super-2 number, since 2×90860687² = 16511328884223938, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90862687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45430343 + 45430344.

It is an arithmetic number, because the mean of its divisors is an integer number (45430344).

Almost surely, 2^90860687 is an apocalyptic number.

90860687 is a deficient number, since it is larger than the sum of its proper divisors (1).

90860687 is an equidigital number, since it uses as much as digits as its factorization.

90860687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 90860687 is about 9532.0872320809. The cubic root of 90860687 is about 449.5644955325.

The spelling of 90860687 in words is "ninety million, eight hundred sixty thousand, six hundred eighty-seven".