64363956 has 24 divisors (see below), whose sum is σ = 150966144. Its totient is φ = 21342720.

The previous prime is 64363951. The next prime is 64363961. The reversal of 64363956 is 65936346.

It is an interprime number because it is at equal distance from previous prime (64363951) and next prime (64363961).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64363951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11580 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (6290256).

Almost surely, 2^64363956 is an apocalyptic number.

It is an amenable number.

64363956 is an abundant number, since it is smaller than the sum of its proper divisors (86602188).

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

64363956 is a wasteful number, since it uses less digits than its factorization.

64363956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27991 (or 27989 counting only the distinct ones).

The product of its digits is 349920, while the sum is 42.

The square root of 64363956 is about 8022.7150017933. The cubic root of 64363956 is about 400.7568088645.

The spelling of 64363956 in words is "sixty-four million, three hundred sixty-three thousand, nine hundred fifty-six".