64346725 has 6 divisors (see below), whose sum is σ = 79789970. Its totient is φ = 51477360.

The previous prime is 64346707. The next prime is 64346747. The reversal of 64346725 is 52764346.

It can be written as a sum of positive squares in 3 ways, for example, as 314721 + 64032004 = 561^2 + 8002^2 .

It is not a de Polignac number, because 64346725 - 2⁹ = 64346213 is a prime.

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, 1286910 + ... + 1286959.

Almost surely, 2^64346725 is an apocalyptic number.

It is an amenable number.

64346725 is a deficient number, since it is larger than the sum of its proper divisors (15443245).

64346725 is a wasteful number, since it uses less digits than its factorization.

64346725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573879 (or 2573874 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 64346725 is about 8021.6410415825. The cubic root of 64346725 is about 400.7210432107.

The spelling of 64346725 in words is "sixty-four million, three hundred forty-six thousand, seven hundred twenty-five".