64930697 has 4 divisors (see below), whose sum is σ = 69925380. Its totient is φ = 59936016.

The previous prime is 64930693. The next prime is 64930699. The reversal of 64930697 is 79603946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5779216 + 59151481 = 2404^2 + 7691^2 .

It is a cyclic number.

It is not a de Polignac number, because 64930697 - 2² = 64930693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64930693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2497322 + ... + 2497347.

It is an arithmetic number, because the mean of its divisors is an integer number (17481345).

Almost surely, 2^64930697 is an apocalyptic number.

It is an amenable number.

64930697 is a deficient number, since it is larger than the sum of its proper divisors (4994683).

64930697 is a wasteful number, since it uses less digits than its factorization.

64930697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994682.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 64930697 is about 8057.9586124527. The cubic root of 64930697 is about 401.9296284499.

The spelling of 64930697 in words is "sixty-four million, nine hundred thirty thousand, six hundred ninety-seven".