64735456 has 48 divisors (see below), whose sum is σ = 136152576. Its totient is φ = 30191616.

The previous prime is 64735441. The next prime is 64735469. The reversal of 64735456 is 65453746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68620 + ... + 69556.

It is an arithmetic number, because the mean of its divisors is an integer number (2836512).

Almost surely, 2^64735456 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 64735456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68076288).

64735456 is an abundant number, since it is smaller than the sum of its proper divisors (71417120).

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

64735456 is a wasteful number, since it uses less digits than its factorization.

64735456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1083 counting only the distinct ones).

The product of its digits is 302400, while the sum is 40.

The square root of 64735456 is about 8045.8346987743. The cubic root of 64735456 is about 401.5263680925.

The spelling of 64735456 in words is "sixty-four million, seven hundred thirty-five thousand, four hundred fifty-six".