900974999 has 4 divisors (see below), whose sum is σ = 901092840. Its totient is φ = 900857160.

The previous prime is 900974983. The next prime is 900975029. The reversal of 900974999 is 999479009.

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 900974999 - 2⁴ = 900974983 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 (900974099) 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, 46592 + ... + 63029.

It is an arithmetic number, because the mean of its divisors is an integer number (225273210).

Almost surely, 2^900974999 is an apocalyptic number.

900974999 is a deficient number, since it is larger than the sum of its proper divisors (117841).

900974999 is a wasteful number, since it uses less digits than its factorization.

900974999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117840.

The product of its (nonzero) digits is 1653372, while the sum is 56.

The square root of 900974999 is about 30016.2455846830. The cubic root of 900974999 is about 965.8379073675.

The spelling of 900974999 in words is "nine hundred million, nine hundred seventy-four thousand, nine hundred ninety-nine".