64168973 has 8 divisors (see below), whose sum is σ = 70078080. Its totient is φ = 58272480.

The previous prime is 64168963. The next prime is 64168991. The reversal of 64168973 is 37986146.

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 64168973 - 2⁴ = 64168957 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 (64168963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9836 + ... + 15002.

It is an arithmetic number, because the mean of its divisors is an integer number (8759760).

Almost surely, 2^64168973 is an apocalyptic number.

It is an amenable number.

64168973 is a deficient number, since it is larger than the sum of its proper divisors (5909107).

64168973 is a wasteful number, since it uses less digits than its factorization.

64168973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307.

The product of its digits is 217728, while the sum is 44.

The square root of 64168973 is about 8010.5538510143. The cubic root of 64168973 is about 400.3517177293.

The spelling of 64168973 in words is "sixty-four million, one hundred sixty-eight thousand, nine hundred seventy-three".