90474709 has 32 divisors (see below), whose sum is σ = 107864064. Its totient is φ = 75176640.

The previous prime is 90474701. The next prime is 90474719. The reversal of 90474709 is 90747409.

It is a cyclic number.

It is not a de Polignac number, because 90474709 - 2³ = 90474701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90474701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398454 + ... + 398680.

It is an arithmetic number, because the mean of its divisors is an integer number (3370752).

Almost surely, 2^90474709 is an apocalyptic number.

It is an amenable number.

90474709 is a deficient number, since it is larger than the sum of its proper divisors (17389355).

90474709 is a wasteful number, since it uses less digits than its factorization.

90474709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 90474709 is about 9511.8194368901. The cubic root of 90474709 is about 448.9270056917.

The spelling of 90474709 in words is "ninety million, four hundred seventy-four thousand, seven hundred nine".