64323660 has 48 divisors (see below), whose sum is σ = 180675936. Its totient is φ = 17098752.

The previous prime is 64323659. The next prime is 64323661. The reversal of 64323660 is 6632346.

It is an interprime number because it is at equal distance from previous prime (64323659) and next prime (64323661).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (64323661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19662 + ... + 22698.

It is an arithmetic number, because the mean of its divisors is an integer number (3764082).

Almost surely, 2^64323660 is an apocalyptic number.

64323660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64323660 is an abundant number, since it is smaller than the sum of its proper divisors (116352276).

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

64323660 is a wasteful number, since it uses less digits than its factorization.

64323660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402 (or 3400 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 64323660 is about 8020.2032393201. The cubic root of 64323660 is about 400.6731581763.

The spelling of 64323660 in words is "sixty-four million, three hundred twenty-three thousand, six hundred sixty".