90607878 has 12 divisors (see below), whose sum is σ = 196317108. Its totient is φ = 30202620.

The previous prime is 90607873. The next prime is 90607883. The reversal of 90607878 is 87870609.

It is an interprime number because it is at equal distance from previous prime (90607873) and next prime (90607883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90607873) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2516868 + ... + 2516903.

It is an arithmetic number, because the mean of its divisors is an integer number (16359759).

Almost surely, 2^90607878 is an apocalyptic number.

90607878 is an abundant number, since it is smaller than the sum of its proper divisors (105709230).

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

90607878 is a wasteful number, since it uses less digits than its factorization.

90607878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033779 (or 5033776 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 90607878 is about 9518.8170483522. The cubic root of 90607878 is about 449.1471550704.

The spelling of 90607878 in words is "ninety million, six hundred seven thousand, eight hundred seventy-eight".