90919094 has 32 divisors (see below), whose sum is σ = 170366976. Its totient is φ = 35487360.

The previous prime is 90919093. The next prime is 90919117. The reversal of 90919094 is 49091909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90919093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (5323968).

Almost surely, 2^90919094 is an apocalyptic number.

90919094 is a deficient number, since it is larger than the sum of its proper divisors (79447882).

90919094 is a wasteful number, since it uses less digits than its factorization.

90919094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 90919094 is about 9535.1504445394. The cubic root of 90919094 is about 449.6608044719.

The spelling of 90919094 in words is "ninety million, nine hundred nineteen thousand, ninety-four".