90946478 has 16 divisors (see below), whose sum is σ = 157138944. Its totient is φ = 38669400.

The previous prime is 90946477. The next prime is 90946543. The reversal of 90946478 is 87464909.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90946477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23798 + ... + 27353.

It is an arithmetic number, because the mean of its divisors is an integer number (9821184).

Almost surely, 2^90946478 is an apocalyptic number.

90946478 is a deficient number, since it is larger than the sum of its proper divisors (66192466).

90946478 is a wasteful number, since it uses less digits than its factorization.

90946478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51287.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 90946478 is about 9536.5862865073. The cubic root of 90946478 is about 449.7059445149.

The spelling of 90946478 in words is "ninety million, nine hundred forty-six thousand, four hundred seventy-eight".