90787627 has 4 divisors (see below), whose sum is σ = 103757296. Its totient is φ = 77817960.

The previous prime is 90787621. The next prime is 90787657. The reversal of 90787627 is 72678709.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90787627 - 2²³ = 82399019 is a prime.

It is a super-2 number, since 2×90787627² = 16484786432582258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90787621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6484824 + ... + 6484837.

It is an arithmetic number, because the mean of its divisors is an integer number (25939324).

Almost surely, 2^90787627 is an apocalyptic number.

90787627 is a deficient number, since it is larger than the sum of its proper divisors (12969669).

90787627 is a wasteful number, since it uses less digits than its factorization.

90787627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969668.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 90787627 is about 9528.2541422865. The cubic root of 90787627 is about 449.4439667298.

The spelling of 90787627 in words is "ninety million, seven hundred eighty-seven thousand, six hundred twenty-seven".