900430879 has 4 divisors (see below), whose sum is σ = 921371176. Its totient is φ = 879490584.

The previous prime is 900430877. The next prime is 900430897. The reversal of 900430879 is 978034009.

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 900430879 - 2¹ = 900430877 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 (900430871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10470084 + ... + 10470169.

It is an arithmetic number, because the mean of its divisors is an integer number (230342794).

Almost surely, 2^900430879 is an apocalyptic number.

900430879 is a deficient number, since it is larger than the sum of its proper divisors (20940297).

900430879 is a wasteful number, since it uses less digits than its factorization.

900430879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20940296.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 900430879 is about 30007.1804573505. The cubic root of 900430879 is about 965.6434374684.

The spelling of 900430879 in words is "nine hundred million, four hundred thirty thousand, eight hundred seventy-nine".