64793560 has 64 divisors (see below), whose sum is σ = 160030080. Its totient is φ = 23462400.

The previous prime is 64793501. The next prime is 64793563. The reversal of 64793560 is 6539746.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64793563) 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, 26385 + ... + 28735.

It is an arithmetic number, because the mean of its divisors is an integer number (2500470).

Almost surely, 2^64793560 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 64793560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80015040).

64793560 is an abundant number, since it is smaller than the sum of its proper divisors (95236520).

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

64793560 is a wasteful number, since it uses less digits than its factorization.

64793560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2424 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 64793560 is about 8049.4447013443. Note that the first 3 decimals coincide. The cubic root of 64793560 is about 401.6464635955.

The spelling of 64793560 in words is "sixty-four million, seven hundred ninety-three thousand, five hundred sixty".