900073 has 8 divisors (see below), whose sum is σ = 955080. Its totient is φ = 846720.

The previous prime is 900061. The next prime is 900089. The reversal of 900073 is 370009.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29584 + 870489 = 172^2 + 933^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 900073.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900673) 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, 811 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (119385).

2⁹⁰⁰⁰⁷³ is an apocalyptic number.

It is an amenable number.

900073 is a deficient number, since it is larger than the sum of its proper divisors (55007).

900073 is a wasteful number, since it uses less digits than its factorization.

900073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 900073 is about 948.7217716486. The cubic root of 900073 is about 96.5515487872.

The spelling of 900073 in words is "nine hundred thousand, seventy-three".