64248673 has 2 divisors, whose sum is σ = 64248674. Its totient is φ = 64248672.

The previous prime is 64248631. The next prime is 64248689. The reversal of 64248673 is 37684246.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62837329 + 1411344 = 7927^2 + 1188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64248673 is a prime.

It is not a weakly prime, because it can be changed into another prime (64248623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32124336 + 32124337.

It is an arithmetic number, because the mean of its divisors is an integer number (32124337).

Almost surely, 2^64248673 is an apocalyptic number.

It is an amenable number.

64248673 is a deficient number, since it is larger than the sum of its proper divisors (1).

64248673 is an equidigital number, since it uses as much as digits as its factorization.

64248673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 64248673 is about 8015.5269945276. The cubic root of 64248673 is about 400.5173992066.

The spelling of 64248673 in words is "sixty-four million, two hundred forty-eight thousand, six hundred seventy-three".