90745911 has 12 divisors (see below), whose sum is σ = 133551288. Its totient is φ = 59355504.

The previous prime is 90745891. The next prime is 90745961. The reversal of 90745911 is 11954709.

It is not a de Polignac number, because 90745911 - 2²¹ = 88648759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90745961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94645 + ... + 95598.

It is an arithmetic number, because the mean of its divisors is an integer number (11129274).

Almost surely, 2^90745911 is an apocalyptic number.

90745911 is a deficient number, since it is larger than the sum of its proper divisors (42805377).

90745911 is a wasteful number, since it uses less digits than its factorization.

90745911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190302 (or 190299 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 90745911 is about 9526.0648223703. The cubic root of 90745911 is about 449.3751178586.

The spelling of 90745911 in words is "ninety million, seven hundred forty-five thousand, nine hundred eleven".