90840916 has 24 divisors (see below), whose sum is σ = 160834464. Its totient is φ = 44892000.

The previous prime is 90840907. The next prime is 90840917. The reversal of 90840916 is 61904809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90840917) 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, 173431 + ... + 173953.

It is an arithmetic number, because the mean of its divisors is an integer number (6701436).

Almost surely, 2^90840916 is an apocalyptic number.

It is an amenable number.

90840916 is a deficient number, since it is larger than the sum of its proper divisors (69993548).

90840916 is a wasteful number, since it uses less digits than its factorization.

90840916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 90840916 is about 9531.0500995431. The cubic root of 90840916 is about 449.5318852266.

The spelling of 90840916 in words is "ninety million, eight hundred forty thousand, nine hundred sixteen".