64724232 has 16 divisors (see below), whose sum is σ = 161810640. Its totient is φ = 21574736.

The previous prime is 64724227. The next prime is 64724237. The reversal of 64724232 is 23242746.

It is an interprime number because it is at equal distance from previous prime (64724227) and next prime (64724237).

It is a super-3 number, since 3×64724232³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64724232.

It is not an unprimeable number, because it can be changed into a prime (64724237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348398 + ... + 1348445.

It is an arithmetic number, because the mean of its divisors is an integer number (10113165).

Almost surely, 2^64724232 is an apocalyptic number.

It is an amenable number.

64724232 is an abundant number, since it is smaller than the sum of its proper divisors (97086408).

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

64724232 is a wasteful number, since it uses less digits than its factorization.

64724232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696852 (or 2696848 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 64724232 is about 8045.1371647723. The cubic root of 64724232 is about 401.5031608594.

Adding to 64724232 its reverse (23242746), we get a palindrome (87966978).

The spelling of 64724232 in words is "sixty-four million, seven hundred twenty-four thousand, two hundred thirty-two".