64632670 has 8 divisors (see below), whose sum is σ = 116338824. Its totient is φ = 25853064.

The previous prime is 64632647. The next prime is 64632697. The reversal of 64632670 is 7623646.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3231624 + ... + 3231643.

It is an arithmetic number, because the mean of its divisors is an integer number (14542353).

Almost surely, 2^64632670 is an apocalyptic number.

64632670 is a deficient number, since it is larger than the sum of its proper divisors (51706154).

64632670 is a wasteful number, since it uses less digits than its factorization.

64632670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463274.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 64632670 is about 8039.4446325601. Note that the first 3 decimals coincide. The cubic root of 64632670 is about 401.3137429747.

The spelling of 64632670 in words is "sixty-four million, six hundred thirty-two thousand, six hundred seventy".