5779197421 has 2 divisors, whose sum is σ = 5779197422. Its totient is φ = 5779197420.

The previous prime is 5779197383. The next prime is 5779197443. The reversal of 5779197421 is 1247919775.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4784488900 + 994708521 = 69170^2 + 31539^2 .

It is a cyclic number.

It is not a de Polignac number, because 5779197421 - 2⁹ = 5779196909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5779197461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2889598710 + 2889598711.

It is an arithmetic number, because the mean of its divisors is an integer number (2889598711).

Almost surely, 2^5779197421 is an apocalyptic number.

It is an amenable number.

5779197421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5779197421 is an equidigital number, since it uses as much as digits as its factorization.

5779197421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 52.

The square root of 5779197421 is about 76021.0327541004. The cubic root of 5779197421 is about 1794.5511581727.

The spelling of 5779197421 in words is "five billion, seven hundred seventy-nine million, one hundred ninety-seven thousand, four hundred twenty-one".