64762073 has 2 divisors, whose sum is σ = 64762074. Its totient is φ = 64762072.

The previous prime is 64762063. The next prime is 64762081. The reversal of 64762073 is 37026746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61653904 + 3108169 = 7852^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 64762073 - 2²⁰ = 63713497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (64762063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32381036 + 32381037.

It is an arithmetic number, because the mean of its divisors is an integer number (32381037).

Almost surely, 2^64762073 is an apocalyptic number.

It is an amenable number.

64762073 is a deficient number, since it is larger than the sum of its proper divisors (1).

64762073 is an equidigital number, since it uses as much as digits as its factorization.

64762073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 64762073 is about 8047.4886144685. The cubic root of 64762073 is about 401.5813918439.

The spelling of 64762073 in words is "sixty-four million, seven hundred sixty-two thousand, seventy-three".