64720200 has 48 divisors (see below), whose sum is σ = 200634480. Its totient is φ = 17258560.

The previous prime is 64720171. The next prime is 64720211. The reversal of 64720200 is 202746.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53334 + ... + 54533.

It is an arithmetic number, because the mean of its divisors is an integer number (4179885).

Almost surely, 2^64720200 is an apocalyptic number.

64720200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64720200 is an abundant number, since it is smaller than the sum of its proper divisors (135914280).

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

64720200 is a wasteful number, since it uses less digits than its factorization.

64720200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107886 (or 107877 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 64720200 is about 8044.8865747132. The cubic root of 64720200 is about 401.4948234650.

Adding to 64720200 its reverse (202746), we get a palindrome (64922946).

The spelling of 64720200 in words is "sixty-four million, seven hundred twenty thousand, two hundred".