5971396021 has 2 divisors, whose sum is σ = 5971396022. Its totient is φ = 5971396020.

The previous prime is 5971396007. The next prime is 5971396097. The reversal of 5971396021 is 1206931795.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5962001796 + 9394225 = 77214^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 5971396021 - 2¹⁵ = 5971363253 is a prime.

It is a super-2 number, since 2×5971396021² = 71315140879229264882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5971396721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2985698010 + 2985698011.

It is an arithmetic number, because the mean of its divisors is an integer number (2985698011).

Almost surely, 2^5971396021 is an apocalyptic number.

It is an amenable number.

5971396021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5971396021 is an equidigital number, since it uses as much as digits as its factorization.

5971396021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 5971396021 is about 77274.8084501023. The cubic root of 5971396021 is about 1814.2283875149.

The spelling of 5971396021 in words is "five billion, nine hundred seventy-one million, three hundred ninety-six thousand, twenty-one".