90607879 has 4 divisors (see below), whose sum is σ = 94547376. Its totient is φ = 86668384.

The previous prime is 90607873. The next prime is 90607883. The reversal of 90607879 is 97870609.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90607879 - 2⁹ = 90607367 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969714 + ... + 1969759.

It is an arithmetic number, because the mean of its divisors is an integer number (23636844).

Almost surely, 2^90607879 is an apocalyptic number.

90607879 is a deficient number, since it is larger than the sum of its proper divisors (3939497).

90607879 is a wasteful number, since it uses less digits than its factorization.

90607879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939496.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 90607879 is about 9518.8171008797. The cubic root of 90607879 is about 449.1471567228.

The spelling of 90607879 in words is "ninety million, six hundred seven thousand, eight hundred seventy-nine".