64705368 has 192 divisors, whose sum is σ = 208707840. Its totient is φ = 16353792.

The previous prime is 64705331. The next prime is 64705369. The reversal of 64705368 is 86350746.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64705369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1220830 + ... + 1220882.

It is an arithmetic number, because the mean of its divisors is an integer number (1087020).

Almost surely, 2^64705368 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 64705368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104353920).

64705368 is an abundant number, since it is smaller than the sum of its proper divisors (144002472).

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

64705368 is a wasteful number, since it uses less digits than its factorization.

64705368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 64705368 is about 8043.9646941045. The cubic root of 64705368 is about 401.4641507838.

The spelling of 64705368 in words is "sixty-four million, seven hundred five thousand, three hundred sixty-eight".