6612942397 has 2 divisors, whose sum is σ = 6612942398. Its totient is φ = 6612942396.

The previous prime is 6612942373. The next prime is 6612942407. The reversal of 6612942397 is 7932492166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4863528121 + 1749414276 = 69739^2 + 41826^2 .

It is a cyclic number.

It is not a de Polignac number, because 6612942397 - 2¹⁵ = 6612909629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6612942397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6612942307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306471198 + 3306471199.

It is an arithmetic number, because the mean of its divisors is an integer number (3306471199).

Almost surely, 2^6612942397 is an apocalyptic number.

It is an amenable number.

6612942397 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612942397 is an equidigital number, since it uses as much as digits as its factorization.

6612942397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 6612942397 is about 81319.9999815544. Note that the first 4 decimals coincide. The cubic root of 6612942397 is about 1877.0027687468.

The spelling of 6612942397 in words is "six billion, six hundred twelve million, nine hundred forty-two thousand, three hundred ninety-seven".