64347039 has 6 divisors (see below), whose sum is σ = 92945736. Its totient is φ = 42898020.

The previous prime is 64347029. The next prime is 64347047. The reversal of 64347039 is 93074346.

64347039 is a `hidden beast` number, since 643 + 4 + 7 + 0 + 3 + 9 = 666.

It is not a de Polignac number, because 64347039 - 2⁸ = 64346783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64346994 and 64347012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64347029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3574827 + ... + 3574844.

It is an arithmetic number, because the mean of its divisors is an integer number (15490956).

Almost surely, 2^64347039 is an apocalyptic number.

64347039 is a deficient number, since it is larger than the sum of its proper divisors (28598697).

64347039 is a wasteful number, since it uses less digits than its factorization.

64347039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149677 (or 7149674 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 64347039 is about 8021.6606136136. The cubic root of 64347039 is about 400.7216950243.

The spelling of 64347039 in words is "sixty-four million, three hundred forty-seven thousand, thirty-nine".