90478608 has 160 divisors (see below), whose sum is σ = 278553600. Its totient is φ = 24998400.

The previous prime is 90478601. The next prime is 90478613. The reversal of 90478608 is 80687409.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90478608.

It is not an unprimeable number, because it can be changed into a prime (90478601) 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, 290773 + ... + 291083.

It is an arithmetic number, because the mean of its divisors is an integer number (1740960).

Almost surely, 2^90478608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90478608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139276800).

90478608 is an abundant number, since it is smaller than the sum of its proper divisors (188074992).

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

90478608 is a wasteful number, since it uses less digits than its factorization.

90478608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 90478608 is about 9512.0243902126. The cubic root of 90478608 is about 448.9334544229.

The spelling of 90478608 in words is "ninety million, four hundred seventy-eight thousand, six hundred eight".