90479690 has 16 divisors (see below), whose sum is σ = 186129792. Its totient is φ = 31021584.

The previous prime is 90479659. The next prime is 90479707. The reversal of 90479690 is 9697409.

It is a super-2 number, since 2×90479690² = 16373148604992200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646214 + ... + 646353.

It is an arithmetic number, because the mean of its divisors is an integer number (11633112).

Almost surely, 2^90479690 is an apocalyptic number.

90479690 is an abundant number, since it is smaller than the sum of its proper divisors (95650102).

90479690 is a wasteful number, since it uses less digits than its factorization.

90479690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292581.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 90479690 is about 9512.0812654224. The cubic root of 90479690 is about 448.9352439585.

The spelling of 90479690 in words is "ninety million, four hundred seventy-nine thousand, six hundred ninety".