64109700 has 54 divisors (see below), whose sum is σ = 200951114. Its totient is φ = 17095680.

The previous prime is 64109653. The next prime is 64109707. The reversal of 64109700 is 790146.

64109700 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 8398404 + 55711296 = 2898^2 + 7464^2 .

It is a super-2 number, since 2×64109700² = 8220107268180000, which contains 22 as substring.

64109700 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (64109707) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34717 + ... + 36516.

Almost surely, 2^64109700 is an apocalyptic number.

64109700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64109700 is an abundant number, since it is smaller than the sum of its proper divisors (136841414).

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

64109700 is a wasteful number, since it uses less digits than its factorization.

64109700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71253 (or 71243 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 64109700 is about 8006.8533145050. The cubic root of 64109700 is about 400.2284112126.

Adding to 64109700 its reverse (790146), we get a palindrome (64899846).

It can be divided in two parts, 6410 and 9700, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 64109700 in words is "sixty-four million, one hundred nine thousand, seven hundred".