972784 has 20 divisors (see below), whose sum is σ = 1901416. Its totient is φ = 482112.

The previous prime is 972721. The next prime is 972787. The reversal of 972784 is 487279.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972787) 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 3 ways as a sum of consecutive naturals, for example, 2422 + ... + 2794.

2⁹⁷²⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

972784 is a deficient number, since it is larger than the sum of its proper divisors (928632).

972784 is a wasteful number, since it uses less digits than its factorization.

972784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 538 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 972784 is about 986.2981293706. The cubic root of 972784 is about 99.0844431383.

The spelling of 972784 in words is "nine hundred seventy-two thousand, seven hundred eighty-four".