64674973 has 8 divisors (see below), whose sum is σ = 71215200. Its totient is φ = 58244880.

The previous prime is 64674971. The next prime is 64674979. The reversal of 64674973 is 37947646.

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 64674973 - 2¹ = 64674971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64674971) 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, 26298 + ... + 28651.

It is an arithmetic number, because the mean of its divisors is an integer number (8901900).

Almost surely, 2^64674973 is an apocalyptic number.

It is an amenable number.

64674973 is a deficient number, since it is larger than the sum of its proper divisors (6540227).

64674973 is a wasteful number, since it uses less digits than its factorization.

64674973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55067.

The product of its digits is 762048, while the sum is 46.

The square root of 64674973 is about 8042.0751675174. The cubic root of 64674973 is about 401.4012790601.

The spelling of 64674973 in words is "sixty-four million, six hundred seventy-four thousand, nine hundred seventy-three".