973072665 has 24 divisors (see below), whose sum is σ = 1688214528. Its totient is φ = 518493600.

The previous prime is 973072649. The next prime is 973072717. The reversal of 973072665 is 566270379.

It is not a de Polignac number, because 973072665 - 2⁴ = 973072649 is a prime.

It is a super-2 number, since 2×973072665² = 1893740822740404450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 973072665.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42402 + ... + 61188.

It is an arithmetic number, because the mean of its divisors is an integer number (70342272).

Almost surely, 2^973072665 is an apocalyptic number.

It is an amenable number.

973072665 is a deficient number, since it is larger than the sum of its proper divisors (715141863).

973072665 is a wasteful number, since it uses less digits than its factorization.

973072665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19949 (or 19946 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 973072665 is about 31194.1126656938. The cubic root of 973072665 is about 990.9424297815.

The spelling of 973072665 in words is "nine hundred seventy-three million, seventy-two thousand, six hundred sixty-five".