90684741 has 16 divisors (see below), whose sum is σ = 141008000. Its totient is φ = 51819264.

The previous prime is 90684733. The next prime is 90684751. The reversal of 90684741 is 14748609.

It is a happy number.

It is not a de Polignac number, because 90684741 - 2³ = 90684733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90684741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90684751) 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, 43036 + ... + 45093.

It is an arithmetic number, because the mean of its divisors is an integer number (8813000).

Almost surely, 2^90684741 is an apocalyptic number.

It is an amenable number.

90684741 is a deficient number, since it is larger than the sum of its proper divisors (50323259).

90684741 is an equidigital number, since it uses as much as digits as its factorization.

90684741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88153 (or 88139 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 90684741 is about 9522.8536164324. The cubic root of 90684741 is about 449.2741235754.

The spelling of 90684741 in words is "ninety million, six hundred eighty-four thousand, seven hundred forty-one".