64934651 has 4 divisors (see below), whose sum is σ = 64975272. Its totient is φ = 64894032.

The previous prime is 64934621. The next prime is 64934663. The reversal of 64934651 is 15643946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64934651 - 2¹⁴ = 64918267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64934621) 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 3 ways as a sum of consecutive naturals, for example, 17810 + ... + 21143.

It is an arithmetic number, because the mean of its divisors is an integer number (16243818).

Almost surely, 2^64934651 is an apocalyptic number.

64934651 is a deficient number, since it is larger than the sum of its proper divisors (40621).

64934651 is a wasteful number, since it uses less digits than its factorization.

64934651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40620.

The product of its digits is 77760, while the sum is 38.

The square root of 64934651 is about 8058.2039562175. The cubic root of 64934651 is about 401.9377868791.

The spelling of 64934651 in words is "sixty-four million, nine hundred thirty-four thousand, six hundred fifty-one".