90294931 has 8 divisors (see below), whose sum is σ = 90906624. Its totient is φ = 89685960.

The previous prime is 90294923. The next prime is 90294937. The reversal of 90294931 is 13949209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90294931 - 2³ = 90294923 is a prime.

It is a super-2 number, since 2×90294931² = 16306349128589522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90294937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164800 + ... + 165346.

It is an arithmetic number, because the mean of its divisors is an integer number (11363328).

Almost surely, 2^90294931 is an apocalyptic number.

90294931 is a deficient number, since it is larger than the sum of its proper divisors (611693).

90294931 is a wasteful number, since it uses less digits than its factorization.

90294931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 90294931 is about 9502.3644952191. The cubic root of 90294931 is about 448.6294613440.

The spelling of 90294931 in words is "ninety million, two hundred ninety-four thousand, nine hundred thirty-one".