64396747 has 8 divisors (see below), whose sum is σ = 65189376. Its totient is φ = 63608832.

The previous prime is 64396741. The next prime is 64396753. The reversal of 64396747 is 74769346.

It is an interprime number because it is at equal distance from previous prime (64396741) and next prime (64396753).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64396747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64396697 and 64396706.

It is not an unprimeable number, because it can be changed into a prime (64396741) 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 7 ways as a sum of consecutive naturals, for example, 31653 + ... + 33625.

It is an arithmetic number, because the mean of its divisors is an integer number (8148672).

Almost surely, 2^64396747 is an apocalyptic number.

64396747 is a deficient number, since it is larger than the sum of its proper divisors (792629).

64396747 is a wasteful number, since it uses less digits than its factorization.

64396747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357.

The product of its digits is 762048, while the sum is 46.

The square root of 64396747 is about 8024.7583764248. The cubic root of 64396747 is about 400.8248541200.

The spelling of 64396747 in words is "sixty-four million, three hundred ninety-six thousand, seven hundred forty-seven".