90478092 has 24 divisors (see below), whose sum is σ = 211288896. Its totient is φ = 30134608.

The previous prime is 90478081. The next prime is 90478109. The reversal of 90478092 is 29087409.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 90478092.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17743 + ... + 22265.

It is an arithmetic number, because the mean of its divisors is an integer number (8803704).

Almost surely, 2^90478092 is an apocalyptic number.

It is an amenable number.

90478092 is an abundant number, since it is smaller than the sum of its proper divisors (120810804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90478092 is a wasteful number, since it uses less digits than its factorization.

90478092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197 (or 6195 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 90478092 is about 9511.9972666102. The cubic root of 90478092 is about 448.9326009980.

The spelling of 90478092 in words is "ninety million, four hundred seventy-eight thousand, ninety-two".