64347925 has 12 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 51347120.

The previous prime is 64347923. The next prime is 64347953. The reversal of 64347925 is 52974346.

It is a happy number.

It is not a de Polignac number, because 64347925 - 2¹ = 64347923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64347923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7404 + ... + 13546.

It is an arithmetic number, because the mean of its divisors is an integer number (6666240).

Almost surely, 2^64347925 is an apocalyptic number.

It is an amenable number.

64347925 is a deficient number, since it is larger than the sum of its proper divisors (15646955).

64347925 is a wasteful number, since it uses less digits than its factorization.

64347925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572 (or 6567 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 64347925 is about 8021.7158388963. The cubic root of 64347925 is about 400.7235342065.

The spelling of 64347925 in words is "sixty-four million, three hundred forty-seven thousand, nine hundred twenty-five".