972636953 has 4 divisors (see below), whose sum is σ = 973033680. Its totient is φ = 972240228.

The previous prime is 972636947. The next prime is 972636983. The reversal of 972636953 is 359636279.

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, and also an emirpimes, since its reverse is a distinct semiprime: 359636279 = 29 ⋅12401251.

It is a cyclic number.

It is not a de Polignac number, because 972636953 - 2⁴ = 972636937 is a prime.

It is a super-2 number, since 2×972636953² = 1892045284682248418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972636913) 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, 194663 + ... + 199596.

It is an arithmetic number, because the mean of its divisors is an integer number (243258420).

Almost surely, 2^972636953 is an apocalyptic number.

It is an amenable number.

972636953 is a deficient number, since it is larger than the sum of its proper divisors (396727).

972636953 is a wasteful number, since it uses less digits than its factorization.

972636953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396726.

The product of its digits is 1837080, while the sum is 50.

The square root of 972636953 is about 31187.1280017895. The cubic root of 972636953 is about 990.7945031900.

The spelling of 972636953 in words is "nine hundred seventy-two million, six hundred thirty-six thousand, nine hundred fifty-three".