64323700 has 72 divisors (see below), whose sum is σ = 163308992. Its totient is φ = 21530880.

The previous prime is 64323697. The next prime is 64323703. The reversal of 64323700 is 732346.

It is an interprime number because it is at equal distance from previous prime (64323697) and next prime (64323703).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64323703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29032 + ... + 31168.

Almost surely, 2^64323700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64323700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81654496).

64323700 is an abundant number, since it is smaller than the sum of its proper divisors (98985292).

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

64323700 is a wasteful number, since it uses less digits than its factorization.

64323700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 64323700 is about 8020.2057330221. The cubic root of 64323700 is about 400.6732412299.

The spelling of 64323700 in words is "sixty-four million, three hundred twenty-three thousand, seven hundred".