64860697 has 4 divisors (see below), whose sum is σ = 70757136. Its totient is φ = 58964260.

The previous prime is 64860689. The next prime is 64860703. The reversal of 64860697 is 79606846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64860697 - 2³ = 64860689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64860637) 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, 2948203 + ... + 2948224.

It is an arithmetic number, because the mean of its divisors is an integer number (17689284).

Almost surely, 2^64860697 is an apocalyptic number.

It is an amenable number.

64860697 is a deficient number, since it is larger than the sum of its proper divisors (5896439).

64860697 is a wasteful number, since it uses less digits than its factorization.

64860697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896438.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 64860697 is about 8053.6139092956. The cubic root of 64860697 is about 401.7851400856.

The spelling of 64860697 in words is "sixty-four million, eight hundred sixty thousand, six hundred ninety-seven".