64612300 has 72 divisors (see below), whose sum is σ = 145678176. Its totient is φ = 24860160.

The previous prime is 64612279. The next prime is 64612307. The reversal of 64612300 is 321646.

It is a super-2 number, since 2×64612300² = 8349498622580000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64612307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386817 + ... + 386983.

It is an arithmetic number, because the mean of its divisors is an integer number (2023308).

Almost surely, 2^64612300 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 64612300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72839088).

64612300 is an abundant number, since it is smaller than the sum of its proper divisors (81065876).

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

64612300 is a wasteful number, since it uses less digits than its factorization.

64612300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 64612300 is about 8038.1776541701. The cubic root of 64612300 is about 401.2715784373.

Adding to 64612300 its reverse (321646), we get a palindrome (64933946).

The spelling of 64612300 in words is "sixty-four million, six hundred twelve thousand, three hundred".