90478059 has 12 divisors (see below), whose sum is σ = 140333544. Its totient is φ = 51701664.

The previous prime is 90478033. The next prime is 90478081. The reversal of 90478059 is 95087409.

It is not a de Polignac number, because 90478059 - 2⁵ = 90478027 is a prime.

It is a hoax number, since the sum of its digits (42) 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 90478059.

It is not an unprimeable number, because it can be changed into a prime (90478259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307602 + ... + 307895.

It is an arithmetic number, because the mean of its divisors is an integer number (11694462).

Almost surely, 2^90478059 is an apocalyptic number.

90478059 is a deficient number, since it is larger than the sum of its proper divisors (49855485).

90478059 is a wasteful number, since it uses less digits than its factorization.

90478059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615514 (or 615507 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 90478059 is about 9511.9955319586. The cubic root of 90478059 is about 448.9325464184.

The spelling of 90478059 in words is "ninety million, four hundred seventy-eight thousand, fifty-nine".