64929745 has 8 divisors (see below), whose sum is σ = 82016640. Its totient is φ = 49209840.

The previous prime is 64929743. The next prime is 64929751. The reversal of 64929745 is 54792946.

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

It is not a de Polignac number, because 64929745 - 2¹ = 64929743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64929695 and 64929704.

It is not an unprimeable number, because it can be changed into a prime (64929743) 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 7 ways as a sum of consecutive naturals, for example, 341641 + ... + 341830.

It is an arithmetic number, because the mean of its divisors is an integer number (10252080).

Almost surely, 2^64929745 is an apocalyptic number.

It is an amenable number.

64929745 is a deficient number, since it is larger than the sum of its proper divisors (17086895).

64929745 is a wasteful number, since it uses less digits than its factorization.

64929745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683495.

The product of its digits is 544320, while the sum is 46.

The square root of 64929745 is about 8057.8995402028. The cubic root of 64929745 is about 401.9276641049.

The spelling of 64929745 in words is "sixty-four million, nine hundred twenty-nine thousand, seven hundred forty-five".