64872207 has 12 divisors (see below), whose sum is σ = 94281304. Its totient is φ = 42981840.

The previous prime is 64872191. The next prime is 64872239. The reversal of 64872207 is 70227846.

64872207 is a `hidden beast` number, since 648 + 7 + 2 + 2 + 0 + 7 = 666.

It is not a de Polignac number, because 64872207 - 2⁴ = 64872191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64872277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20644 + ... + 23577.

Almost surely, 2^64872207 is an apocalyptic number.

64872207 is a deficient number, since it is larger than the sum of its proper divisors (29409097).

64872207 is a wasteful number, since it uses less digits than its factorization.

64872207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44390 (or 44387 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 64872207 is about 8054.3284636275. The cubic root of 64872207 is about 401.8089052400.

The spelling of 64872207 in words is "sixty-four million, eight hundred seventy-two thousand, two hundred seven".