64983408 has 80 divisors (see below), whose sum is σ = 195820800. Its totient is φ = 18561984.

The previous prime is 64983407. The next prime is 64983419. The reversal of 64983408 is 80438946.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 64983408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64983407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14491 + ... + 18437.

It is an arithmetic number, because the mean of its divisors is an integer number (2447760).

Almost surely, 2^64983408 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 64983408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97910400).

64983408 is an abundant number, since it is smaller than the sum of its proper divisors (130837392).

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

64983408 is a wasteful number, since it uses less digits than its factorization.

64983408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 64983408 is about 8061.2286904665. The cubic root of 64983408 is about 402.0383617261.

The spelling of 64983408 in words is "sixty-four million, nine hundred eighty-three thousand, four hundred eight".