7964020331 has 2 divisors, whose sum is σ = 7964020332. Its totient is φ = 7964020330.

The previous prime is 7964020321. The next prime is 7964020333. The reversal of 7964020331 is 1330204697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7964020331 - 2²⁶ = 7896911467 is a prime.

It is a super-2 number, since 2×7964020331² (a number of 21 digits) contains 22 as substring.

Together with 7964020333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7964020291 and 7964020300.

It is not a weakly prime, because it can be changed into another prime (7964020333) 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 as a sum of consecutive naturals, namely, 3982010165 + 3982010166.

It is an arithmetic number, because the mean of its divisors is an integer number (3982010166).

Almost surely, 2^7964020331 is an apocalyptic number.

7964020331 is a deficient number, since it is larger than the sum of its proper divisors (1).

7964020331 is an equidigital number, since it uses as much as digits as its factorization.

7964020331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 7964020331 is about 89241.3599795521. The cubic root of 7964020331 is about 1996.9971880666.

The spelling of 7964020331 in words is "seven billion, nine hundred sixty-four million, twenty thousand, three hundred thirty-one".