900728 has 32 divisors (see below), whose sum is σ = 1846800. Its totient is φ = 410112.

The previous prime is 900719. The next prime is 900737. The reversal of 900728 is 827009.

It is an interprime number because it is at equal distance from previous prime (900719) and next prime (900737).

It is a super-2 number, since 2×900728² = 1622621859968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 900697 and 900706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4943 + ... + 5121.

2⁹⁰⁰⁷²⁸ is an apocalyptic number.

It is an amenable number.

900728 is an abundant number, since it is smaller than the sum of its proper divisors (946072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

900728 is a wasteful number, since it uses less digits than its factorization.

900728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 900728 is about 949.0669101807. The cubic root of 900728 is about 96.5749638991.

The spelling of 900728 in words is "nine hundred thousand, seven hundred twenty-eight".