64606797 has 12 divisors (see below), whose sum is σ = 93391740. Its totient is φ = 43038528.

The previous prime is 64606777. The next prime is 64606799. The reversal of 64606797 is 79760646.

It can be written as a sum of positive squares in 2 ways, for example, as 44275716 + 20331081 = 6654^2 + 4509^2 .

It is not a de Polignac number, because 64606797 - 2⁸ = 64606541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64606799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18529 + ... + 21737.

It is an arithmetic number, because the mean of its divisors is an integer number (7782645).

Almost surely, 2^64606797 is an apocalyptic number.

It is an amenable number.

64606797 is a deficient number, since it is larger than the sum of its proper divisors (28784943).

64606797 is a wasteful number, since it uses less digits than its factorization.

64606797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 64606797 is about 8037.8353429266. The cubic root of 64606797 is about 401.2601860750.

The spelling of 64606797 in words is "sixty-four million, six hundred six thousand, seven hundred ninety-seven".