64873197 has 32 divisors (see below), whose sum is σ = 99855360. Its totient is φ = 41595120.

The previous prime is 64873157. The next prime is 64873223. The reversal of 64873197 is 79137846.

It is not a de Polignac number, because 64873197 - 2⁷ = 64873069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64873117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82038 + ... + 82824.

It is an arithmetic number, because the mean of its divisors is an integer number (3120480).

Almost surely, 2^64873197 is an apocalyptic number.

It is an amenable number.

64873197 is a deficient number, since it is larger than the sum of its proper divisors (34982163).

64873197 is a wasteful number, since it uses less digits than its factorization.

64873197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 904 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 64873197 is about 8054.3899210306. The cubic root of 64873197 is about 401.8109492011.

The spelling of 64873197 in words is "sixty-four million, eight hundred seventy-three thousand, one hundred ninety-seven".