974644 has 24 divisors (see below), whose sum is σ = 1971648. Its totient is φ = 416640.

The previous prime is 974599. The next prime is 974651. The reversal of 974644 is 446479.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

974644 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 97 + ... + 1399.

It is an arithmetic number, because the mean of its divisors is an integer number (82152).

2⁹⁷⁴⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

974644 is an abundant number, since it is smaller than the sum of its proper divisors (997004).

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

974644 is a wasteful number, since it uses less digits than its factorization.

974644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1333 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 974644 is about 987.2405988410. The cubic root of 974644 is about 99.1475540063.

It can be divided in two parts, 9746 and 44, that multiplied together give a palindrome (428824).

The spelling of 974644 in words is "nine hundred seventy-four thousand, six hundred forty-four".