972444853 has 4 divisors (see below), whose sum is σ = 1014725088. Its totient is φ = 930164620.

The previous prime is 972444821. The next prime is 972444877. The reversal of 972444853 is 358444279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 972444853 - 2⁵ = 972444821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972444553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21140083 + ... + 21140128.

It is an arithmetic number, because the mean of its divisors is an integer number (253681272).

Almost surely, 2^972444853 is an apocalyptic number.

It is an amenable number.

972444853 is a deficient number, since it is larger than the sum of its proper divisors (42280235).

972444853 is a wasteful number, since it uses less digits than its factorization.

972444853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42280234.

The product of its digits is 967680, while the sum is 46.

The square root of 972444853 is about 31184.0480534519. The cubic root of 972444853 is about 990.7292701637.

The spelling of 972444853 in words is "nine hundred seventy-two million, four hundred forty-four thousand, eight hundred fifty-three".