972664403 has 2 divisors, whose sum is σ = 972664404. Its totient is φ = 972664402.

The previous prime is 972664387. The next prime is 972664421. The reversal of 972664403 is 304466279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 972664403 - 2⁴ = 972664387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (972664423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486332201 + 486332202.

It is an arithmetic number, because the mean of its divisors is an integer number (486332202).

Almost surely, 2^972664403 is an apocalyptic number.

972664403 is a deficient number, since it is larger than the sum of its proper divisors (1).

972664403 is an equidigital number, since it uses as much as digits as its factorization.

972664403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 972664403 is about 31187.5680840940. The cubic root of 972664403 is about 990.8038239179.

The spelling of 972664403 in words is "nine hundred seventy-two million, six hundred sixty-four thousand, four hundred three".