64927456 has 48 divisors (see below), whose sum is σ = 140555520. Its totient is φ = 29278080.

The previous prime is 64927411. The next prime is 64927469. The reversal of 64927456 is 65472946.

It is a happy number.

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, 48265 + ... + 49591.

It is an arithmetic number, because the mean of its divisors is an integer number (2928240).

Almost surely, 2^64927456 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 64927456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70277760).

64927456 is an abundant number, since it is smaller than the sum of its proper divisors (75628064).

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

64927456 is a wasteful number, since it uses less digits than its factorization.

64927456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1479 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 64927456 is about 8057.7575044177. The cubic root of 64927456 is about 401.9229409320.

Subtracting 64927456 from its reverse (65472946), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 64927456 in words is "sixty-four million, nine hundred twenty-seven thousand, four hundred fifty-six".