64047973 has 8 divisors (see below), whose sum is σ = 69975360. Its totient is φ = 58138080.

The previous prime is 64047961. The next prime is 64047983. The reversal of 64047973 is 37974046.

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

It is a de Polignac number, because none of the positive numbers 2^k-64047973 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 (64047923) 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, 3993 + ... + 12001.

It is an arithmetic number, because the mean of its divisors is an integer number (8746920).

Almost surely, 2^64047973 is an apocalyptic number.

It is an amenable number.

64047973 is a deficient number, since it is larger than the sum of its proper divisors (5927387).

64047973 is a wasteful number, since it uses less digits than its factorization.

64047973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8747.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 64047973 is about 8002.9977508431. The cubic root of 64047973 is about 400.0999187885.

The spelling of 64047973 in words is "sixty-four million, forty-seven thousand, nine hundred seventy-three".