90642610 has 16 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 36226096.

The previous prime is 90642593. The next prime is 90642613. The reversal of 90642610 is 1624609.

It is a super-2 number, since 2×90642610² = 16432165495224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90642613) 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 7 ways as a sum of consecutive naturals, for example, 11241 + ... + 17539.

It is an arithmetic number, because the mean of its divisors is an integer number (10206000).

Almost surely, 2^90642610 is an apocalyptic number.

90642610 is a deficient number, since it is larger than the sum of its proper divisors (72653390).

90642610 is a wasteful number, since it uses less digits than its factorization.

90642610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7745.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 90642610 is about 9520.6412599152. The cubic root of 90642610 is about 449.2045370792.

The spelling of 90642610 in words is "ninety million, six hundred forty-two thousand, six hundred ten".