90917386 has 16 divisors (see below), whose sum is σ = 156723840. Its totient is φ = 38748240.

The previous prime is 90917383. The next prime is 90917401. The reversal of 90917386 is 68371909.

It is not an unprimeable number, because it can be changed into a prime (90917383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15406 + ... + 20473.

It is an arithmetic number, because the mean of its divisors is an integer number (9795240).

Almost surely, 2^90917386 is an apocalyptic number.

90917386 is a deficient number, since it is larger than the sum of its proper divisors (65806454).

90917386 is a wasteful number, since it uses less digits than its factorization.

90917386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36069.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 90917386 is about 9535.0608807705. The cubic root of 90917386 is about 449.6579886883.

The spelling of 90917386 in words is "ninety million, nine hundred seventeen thousand, three hundred eighty-six".