973997047 has 4 divisors (see below), whose sum is σ = 981004360. Its totient is φ = 966989736.

The previous prime is 973997039. The next prime is 973997053. The reversal of 973997047 is 740799379.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 973997047 - 2³ = 973997039 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 (973997147) 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, 3503448 + ... + 3503725.

It is an arithmetic number, because the mean of its divisors is an integer number (245251090).

Almost surely, 2^973997047 is an apocalyptic number.

973997047 is a deficient number, since it is larger than the sum of its proper divisors (7007313).

973997047 is a wasteful number, since it uses less digits than its factorization.

973997047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007312.

The product of its (nonzero) digits is 3000564, while the sum is 55.

The square root of 973997047 is about 31208.9257585070. The cubic root of 973997047 is about 991.2561163378.

The spelling of 973997047 in words is "nine hundred seventy-three million, nine hundred ninety-seven thousand, forty-seven".