64425670 has 8 divisors (see below), whose sum is σ = 115966224. Its totient is φ = 25770264.

The previous prime is 64425667. The next prime is 64425671. The reversal of 64425670 is 7652446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64425671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3221274 + ... + 3221293.

It is an arithmetic number, because the mean of its divisors is an integer number (14495778).

Almost surely, 2^64425670 is an apocalyptic number.

64425670 is a deficient number, since it is larger than the sum of its proper divisors (51540554).

64425670 is a wasteful number, since it uses less digits than its factorization.

64425670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442574.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 64425670 is about 8026.5602844556. The cubic root of 64425670 is about 400.8848536417.

The spelling of 64425670 in words is "sixty-four million, four hundred twenty-five thousand, six hundred seventy".