5997803621 has 4 divisors (see below), whose sum is σ = 6125416512. Its totient is φ = 5870190732.

The previous prime is 5997803611. The next prime is 5997803627. The reversal of 5997803621 is 1263087995.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5997803621 - 2⁶ = 5997803557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5997803621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5997803627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63806375 + ... + 63806468.

It is an arithmetic number, because the mean of its divisors is an integer number (1531354128).

Almost surely, 2^5997803621 is an apocalyptic number.

It is an amenable number.

5997803621 is a deficient number, since it is larger than the sum of its proper divisors (127612891).

5997803621 is a wasteful number, since it uses less digits than its factorization.

5997803621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127612890.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 5997803621 is about 77445.4880609581. The cubic root of 5997803621 is about 1816.8988387985.

The spelling of 5997803621 in words is "five billion, nine hundred ninety-seven million, eight hundred three thousand, six hundred twenty-one".