900922021 has 8 divisors (see below), whose sum is σ = 960237504. Its totient is φ = 842308800.

The previous prime is 900922019. The next prime is 900922039. The reversal of 900922021 is 120229009.

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

It is a cyclic number.

It is not a de Polignac number, because 900922021 - 2¹ = 900922019 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 (900922051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172915 + ... + 178048.

It is an arithmetic number, because the mean of its divisors is an integer number (120029688).

Almost surely, 2^900922021 is an apocalyptic number.

It is an amenable number.

900922021 is a deficient number, since it is larger than the sum of its proper divisors (59315483).

900922021 is a wasteful number, since it uses less digits than its factorization.

900922021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351131.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 900922021 is about 30015.3630829280. The cubic root of 900922021 is about 965.8189763340.

The spelling of 900922021 in words is "nine hundred million, nine hundred twenty-two thousand, twenty-one".