64956373 has 2 divisors, whose sum is σ = 64956374. Its totient is φ = 64956372.

The previous prime is 64956343. The next prime is 64956391. The reversal of 64956373 is 37365946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40424164 + 24532209 = 6358^2 + 4953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64956373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64956343) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32478186 + 32478187.

It is an arithmetic number, because the mean of its divisors is an integer number (32478187).

Almost surely, 2^64956373 is an apocalyptic number.

It is an amenable number.

64956373 is a deficient number, since it is larger than the sum of its proper divisors (1).

64956373 is an equidigital number, since it uses as much as digits as its factorization.

64956373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 43.

The square root of 64956373 is about 8059.5516624686. The cubic root of 64956373 is about 401.9826007502.

It can be divided in two parts, 649563 and 73, that added together give a square (649636 = 806²).

The spelling of 64956373 in words is "sixty-four million, nine hundred fifty-six thousand, three hundred seventy-three".