64349727 has 8 divisors (see below), whose sum is σ = 92399664. Its totient is φ = 39599808.

The previous prime is 64349723. The next prime is 64349741. The reversal of 64349727 is 72794346.

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

It is not a de Polignac number, because 64349727 - 2² = 64349723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64349723) 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, 824958 + ... + 825035.

It is an arithmetic number, because the mean of its divisors is an integer number (11549958).

Almost surely, 2^64349727 is an apocalyptic number.

64349727 is a deficient number, since it is larger than the sum of its proper divisors (28049937).

64349727 is a wasteful number, since it uses less digits than its factorization.

64349727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650009.

The product of its digits is 254016, while the sum is 42.

The square root of 64349727 is about 8021.8281582193. The cubic root of 64349727 is about 400.7272747937.

It can be divided in two parts, 6434 and 9727, that added together give a palindrome (16161).

The spelling of 64349727 in words is "sixty-four million, three hundred forty-nine thousand, seven hundred twenty-seven".