900120073 has 8 divisors (see below), whose sum is σ = 903670400. Its totient is φ = 896576688.

The previous prime is 900120071. The next prime is 900120083. The reversal of 900120073 is 370021009.

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 900120073 - 2¹ = 900120071 is a prime.

It is a super-2 number, since 2×900120073² = 1620432291635050658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900120071) 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, 538483 + ... + 540151.

It is an arithmetic number, because the mean of its divisors is an integer number (112958800).

Almost surely, 2^900120073 is an apocalyptic number.

It is an amenable number.

900120073 is a deficient number, since it is larger than the sum of its proper divisors (3550327).

900120073 is a wasteful number, since it uses less digits than its factorization.

900120073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 900120073 is about 30002.0011499233. The cubic root of 900120073 is about 965.5323194396.

The spelling of 900120073 in words is "nine hundred million, one hundred twenty thousand, seventy-three".