64247630 has 16 divisors (see below), whose sum is σ = 115774704. Its totient is φ = 25670400.

The previous prime is 64247621. The next prime is 64247639. The reversal of 64247630 is 3674246.

It is an interprime number because it is at equal distance from previous prime (64247621) and next prime (64247639).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64247639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7454 + ... + 13566.

It is an arithmetic number, because the mean of its divisors is an integer number (7235919).

Almost surely, 2^64247630 is an apocalyptic number.

64247630 is a deficient number, since it is larger than the sum of its proper divisors (51527074).

64247630 is a wasteful number, since it uses less digits than its factorization.

64247630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64247630 is about 8015.4619330392. The cubic root of 64247630 is about 400.5152318886.

The spelling of 64247630 in words is "sixty-four million, two hundred forty-seven thousand, six hundred thirty".