64688082 has 32 divisors (see below), whose sum is σ = 133311552. Its totient is φ = 20913984.

The previous prime is 64688081. The next prime is 64688083. The reversal of 64688082 is 28088646.

It is an interprime number because it is at equal distance from previous prime (64688081) and next prime (64688083).

It is not an unprimeable number, because it can be changed into a prime (64688081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39708 + ... + 41304.

It is an arithmetic number, because the mean of its divisors is an integer number (4165986).

Almost surely, 2^64688082 is an apocalyptic number.

64688082 is an abundant number, since it is smaller than the sum of its proper divisors (68623470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64688082 is a wasteful number, since it uses less digits than its factorization.

64688082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 64688082 is about 8042.8901521779. The cubic root of 64688082 is about 401.4283972979.

The spelling of 64688082 in words is "sixty-four million, six hundred eighty-eight thousand, eighty-two".