64730700 has 108 divisors (see below), whose sum is σ = 205955568. Its totient is φ = 17001600.

The previous prime is 64730693. The next prime is 64730707. The reversal of 64730700 is 703746.

It is an interprime number because it is at equal distance from previous prime (64730693) and next prime (64730707).

It is not an unprimeable number, because it can be changed into a prime (64730707) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63394 + ... + 64406.

It is an arithmetic number, because the mean of its divisors is an integer number (1906996).

Almost surely, 2^64730700 is an apocalyptic number.

64730700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64730700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102977784).

64730700 is an abundant number, since it is smaller than the sum of its proper divisors (141224868).

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

64730700 is a wasteful number, since it uses less digits than its factorization.

64730700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 64730700 is about 8045.5391366893. The cubic root of 64730700 is about 401.5165347065.

The spelling of 64730700 in words is "sixty-four million, seven hundred thirty thousand, seven hundred".