90418965 has 48 divisors (see below), whose sum is σ = 181254528. Its totient is φ = 38150784.

The previous prime is 90418963. The next prime is 90419027. The reversal of 90418965 is 56981409.

It is not a de Polignac number, because 90418965 - 2¹ = 90418963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90418961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4824 + ... + 14286.

It is an arithmetic number, because the mean of its divisors is an integer number (3776136).

Almost surely, 2^90418965 is an apocalyptic number.

It is an amenable number.

90418965 is an abundant number, since it is smaller than the sum of its proper divisors (90835563).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90418965 is a wasteful number, since it uses less digits than its factorization.

90418965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9498 (or 9491 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 90418965 is about 9508.8887363351. Note that the first 3 decimals coincide. The cubic root of 90418965 is about 448.8347879195.

The spelling of 90418965 in words is "ninety million, four hundred eighteen thousand, nine hundred sixty-five".