64708871 has 4 divisors (see below), whose sum is σ = 64725000. Its totient is φ = 64692744.

The previous prime is 64708849. The next prime is 64708877. The reversal of 64708871 is 17880746.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64708871 - 2⁶ = 64708807 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 (64708877) 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, 3185 + ... + 11813.

It is an arithmetic number, because the mean of its divisors is an integer number (16181250).

Almost surely, 2^64708871 is an apocalyptic number.

64708871 is a deficient number, since it is larger than the sum of its proper divisors (16129).

64708871 is an equidigital number, since it uses as much as digits as its factorization.

64708871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 64708871 is about 8044.1824320437. The cubic root of 64708871 is about 401.4713954354.

The spelling of 64708871 in words is "sixty-four million, seven hundred eight thousand, eight hundred seventy-one".