64064761 has 2 divisors, whose sum is σ = 64064762. Its totient is φ = 64064760.

The previous prime is 64064731. The next prime is 64064773. The reversal of 64064761 is 16746046.

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., 54110736 + 9954025 = 7356^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 64064761 - 2¹⁹ = 63540473 is a prime.

It is not a weakly prime, because it can be changed into another prime (64064731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32032380 + 32032381.

It is an arithmetic number, because the mean of its divisors is an integer number (32032381).

Almost surely, 2^64064761 is an apocalyptic number.

It is an amenable number.

64064761 is a deficient number, since it is larger than the sum of its proper divisors (1).

64064761 is an equidigital number, since it uses as much as digits as its factorization.

64064761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 64064761 is about 8004.0465390951. The cubic root of 64064761 is about 400.1348732679.

The spelling of 64064761 in words is "sixty-four million, sixty-four thousand, seven hundred sixty-one".