900747 has 16 divisors (see below), whose sum is σ = 1355680. Its totient is φ = 590976.

The previous prime is 900743. The next prime is 900751. The reversal of 900747 is 747009.

It is an interprime number because it is at equal distance from previous prime (900743) and next prime (900751).

It is not a de Polignac number, because 900747 - 2² = 900743 is a prime.

It is a super-2 number, since 2×900747² = 1622690316018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

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 900747.

It is not an unprimeable number, because it can be changed into a prime (900743) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1743 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (84730).

2⁹⁰⁰⁷⁴⁷ is an apocalyptic number.

900747 is a deficient number, since it is larger than the sum of its proper divisors (454933).

900747 is a wasteful number, since it uses less digits than its factorization.

900747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 900747 is about 949.0769199596. The cubic root of 900747 is about 96.5756429467.

The spelling of 900747 in words is "nine hundred thousand, seven hundred forty-seven".