64606448 has 30 divisors (see below), whose sum is σ = 130929864. Its totient is φ = 30824992.

The previous prime is 64606439. The next prime is 64606481. The reversal of 64606448 is 84460646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153983 + ... + 154401.

Almost surely, 2^64606448 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 64606448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65464932).

64606448 is an abundant number, since it is smaller than the sum of its proper divisors (66323416).

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

64606448 is an equidigital number, since it uses as much as digits as its factorization.

64606448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 64606448 is about 8037.8136330721. The cubic root of 64606448 is about 401.2594635501.

The spelling of 64606448 in words is "sixty-four million, six hundred six thousand, four hundred forty-eight".