64626673 has 8 divisors (see below), whose sum is σ = 68733792. Its totient is φ = 60553536.

The previous prime is 64626671. The next prime is 64626677. The reversal of 64626673 is 37662646.

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

It is a cyclic number.

It is not a de Polignac number, because 64626673 - 2¹ = 64626671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64626671) 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, 4515 + ... + 12232.

It is an arithmetic number, because the mean of its divisors is an integer number (8591724).

Almost surely, 2^64626673 is an apocalyptic number.

It is an amenable number.

64626673 is a deficient number, since it is larger than the sum of its proper divisors (4107119).

64626673 is a wasteful number, since it uses less digits than its factorization.

64626673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16991.

The product of its digits is 217728, while the sum is 40.

The square root of 64626673 is about 8039.0716503835. The cubic root of 64626673 is about 401.3013305061.

The spelling of 64626673 in words is "sixty-four million, six hundred twenty-six thousand, six hundred seventy-three".