64535117 has 4 divisors (see below), whose sum is σ = 64704000. Its totient is φ = 64366236.

The previous prime is 64535113. The next prime is 64535161. The reversal of 64535117 is 71153546.

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 64535117 - 2² = 64535113 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 (64535113) 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, 83867 + ... + 84632.

It is an arithmetic number, because the mean of its divisors is an integer number (16176000).

Almost surely, 2^64535117 is an apocalyptic number.

It is an amenable number.

64535117 is a deficient number, since it is larger than the sum of its proper divisors (168883).

64535117 is a wasteful number, since it uses less digits than its factorization.

64535117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168882.

The product of its digits is 12600, while the sum is 32.

The square root of 64535117 is about 8033.3751935286. The cubic root of 64535117 is about 401.1117343376. Note that the first 3 decimals are identical.

It can be divided in two parts, 6453 and 5117, that multiplied together give a triangular number (33020001 = T₈₁₂₆).

The spelling of 64535117 in words is "sixty-four million, five hundred thirty-five thousand, one hundred seventeen".