6946722439 has 2 divisors, whose sum is σ = 6946722440. Its totient is φ = 6946722438.

The previous prime is 6946722401. The next prime is 6946722463. The reversal of 6946722439 is 9342276496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6946722439 - 2⁹ = 6946721927 is a prime.

It is a super-2 number, since 2×6946722439² = 96513905289012217442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6946782439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3473361219 + 3473361220.

It is an arithmetic number, because the mean of its divisors is an integer number (3473361220).

Almost surely, 2^6946722439 is an apocalyptic number.

6946722439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6946722439 is an equidigital number, since it uses as much as digits as its factorization.

6946722439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 52.

The square root of 6946722439 is about 83347.0001799705. Note that the first 3 decimals coincide. The cubic root of 6946722439 is about 1908.0656603409.

The spelling of 6946722439 in words is "six billion, nine hundred forty-six million, seven hundred twenty-two thousand, four hundred thirty-nine".