64472897 has 2 divisors, whose sum is σ = 64472898. Its totient is φ = 64472896.

The previous prime is 64472873. The next prime is 64472911. The reversal of 64472897 is 79827446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 17673616 = 6841^2 + 4204^2 .

It is a cyclic number.

It is not a de Polignac number, because 64472897 - 2⁸ = 64472641 is a prime.

It is not a weakly prime, because it can be changed into another prime (64472497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32236448 + 32236449.

It is an arithmetic number, because the mean of its divisors is an integer number (32236449).

Almost surely, 2^64472897 is an apocalyptic number.

It is an amenable number.

64472897 is a deficient number, since it is larger than the sum of its proper divisors (1).

64472897 is an equidigital number, since it uses as much as digits as its factorization.

64472897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The square root of 64472897 is about 8029.5016657324. The cubic root of 64472897 is about 400.9827854377.

The spelling of 64472897 in words is "sixty-four million, four hundred seventy-two thousand, eight hundred ninety-seven".