4647722973 has 16 divisors (see below), whose sum is σ = 6574999680. Its totient is φ = 2910214656.

The previous prime is 4647722971. The next prime is 4647722993. The reversal of 4647722973 is 3792277464.

It is a happy number.

It is not a de Polignac number, because 4647722973 - 2¹ = 4647722971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4647722971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68728 + ... + 118401.

It is an arithmetic number, because the mean of its divisors is an integer number (410937480).

Almost surely, 2^4647722973 is an apocalyptic number.

It is an amenable number.

4647722973 is a deficient number, since it is larger than the sum of its proper divisors (1927276707).

4647722973 is a wasteful number, since it uses less digits than its factorization.

4647722973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187636.

The product of its digits is 3556224, while the sum is 51.

The square root of 4647722973 is about 68174.2104684755. The cubic root of 4647722973 is about 1668.8350455275.

The spelling of 4647722973 in words is "four billion, six hundred forty-seven million, seven hundred twenty-two thousand, nine hundred seventy-three".