6604629973 has 2 divisors, whose sum is σ = 6604629974. Its totient is φ = 6604629972.

The previous prime is 6604629961. The next prime is 6604630009. The reversal of 6604629973 is 3799264066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5620051089 + 984578884 = 74967^2 + 31378^2 .

It is a cyclic number.

It is not a de Polignac number, because 6604629973 - 2¹³ = 6604621781 is a prime.

It is a super-2 number, since 2×6604629973² = 87242274160499961458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6604629973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6604629943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3302314986 + 3302314987.

It is an arithmetic number, because the mean of its divisors is an integer number (3302314987).

Almost surely, 2^6604629973 is an apocalyptic number.

It is an amenable number.

6604629973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6604629973 is an equidigital number, since it uses as much as digits as its factorization.

6604629973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The square root of 6604629973 is about 81268.8745646204. The cubic root of 6604629973 is about 1876.2159790505.

The spelling of 6604629973 in words is "six billion, six hundred four million, six hundred twenty-nine thousand, nine hundred seventy-three".