64070609 has 2 divisors, whose sum is σ = 64070610. Its totient is φ = 64070608.

The previous prime is 64070597. The next prime is 64070623. The reversal of 64070609 is 90607046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50908225 + 13162384 = 7135^2 + 3628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64070609 is a prime.

It is not a weakly prime, because it can be changed into another prime (64070509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32035304 + 32035305.

It is an arithmetic number, because the mean of its divisors is an integer number (32035305).

Almost surely, 2^64070609 is an apocalyptic number.

It is an amenable number.

64070609 is a deficient number, since it is larger than the sum of its proper divisors (1).

64070609 is an equidigital number, since it uses as much as digits as its factorization.

64070609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 64070609 is about 8004.4118459759. The cubic root of 64070609 is about 400.1470480189.

The spelling of 64070609 in words is "sixty-four million, seventy thousand, six hundred nine".