972644828 has 12 divisors (see below), whose sum is σ = 1709762880. Its totient is φ = 484141152.

The previous prime is 972644807. The next prime is 972644843. The reversal of 972644828 is 828446279.

It is a super-2 number, since 2×972644828² = 1892075922870299168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544313 + ... + 546096.

It is an arithmetic number, because the mean of its divisors is an integer number (142480240).

Almost surely, 2^972644828 is an apocalyptic number.

It is an amenable number.

972644828 is a deficient number, since it is larger than the sum of its proper divisors (737118052).

972644828 is a wasteful number, since it uses less digits than its factorization.

972644828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090636 (or 1090634 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 972644828 is about 31187.2542555448. The cubic root of 972644828 is about 990.7971771873.

The spelling of 972644828 in words is "nine hundred seventy-two million, six hundred forty-four thousand, eight hundred twenty-eight".