90492878 has 8 divisors (see below), whose sum is σ = 155130672. Its totient is φ = 38782656.

The previous prime is 90492851. The next prime is 90492881. The reversal of 90492878 is 87829409.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231875 + ... + 3231902.

It is an arithmetic number, because the mean of its divisors is an integer number (19391334).

Almost surely, 2^90492878 is an apocalyptic number.

90492878 is a deficient number, since it is larger than the sum of its proper divisors (64637794).

90492878 is a wasteful number, since it uses less digits than its factorization.

90492878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463786.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 90492878 is about 9512.7744638460. The cubic root of 90492878 is about 448.9570546373.

The spelling of 90492878 in words is "ninety million, four hundred ninety-two thousand, eight hundred seventy-eight".