64206117 has 12 divisors (see below), whose sum is σ = 92872780. Its totient is φ = 42743808.

The previous prime is 64206091. The next prime is 64206139. The reversal of 64206117 is 71160246.

64206117 is a `hidden beast` number, since 6 + 42 + 0 + 611 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39614436 + 24591681 = 6294^2 + 4959^2 .

It is not a de Polignac number, because 64206117 - 2⁸ = 64205861 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 (64206157) 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, 2283 + ... + 11559.

Almost surely, 2^64206117 is an apocalyptic number.

It is an amenable number.

64206117 is a deficient number, since it is larger than the sum of its proper divisors (28666663).

64206117 is a wasteful number, since it uses less digits than its factorization.

64206117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052 (or 10049 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 64206117 is about 8012.8719570451. The cubic root of 64206117 is about 400.4289502564.

The spelling of 64206117 in words is "sixty-four million, two hundred six thousand, one hundred seventeen".