64860755 has 8 divisors (see below), whose sum is σ = 77879472. Its totient is φ = 51857568.

The previous prime is 64860749. The next prime is 64860769. The reversal of 64860755 is 55706846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64860755 - 2⁴ = 64860739 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9524 + ... + 14846.

It is an arithmetic number, because the mean of its divisors is an integer number (9734934).

Almost surely, 2^64860755 is an apocalyptic number.

64860755 is a deficient number, since it is larger than the sum of its proper divisors (13018717).

64860755 is a wasteful number, since it uses less digits than its factorization.

64860755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 64860755 is about 8053.6175101627. The cubic root of 64860755 is about 401.7852598476.

The spelling of 64860755 in words is "sixty-four million, eight hundred sixty thousand, seven hundred fifty-five".