3128622797 has 2 divisors, whose sum is σ = 3128622798. Its totient is φ = 3128622796.

The previous prime is 3128622787. The next prime is 3128622799. The reversal of 3128622797 is 7972268213.

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., 1926683236 + 1201939561 = 43894^2 + 34669^2 .

It is a cyclic number.

It is not a de Polignac number, because 3128622797 - 2⁴ = 3128622781 is a prime.

Together with 3128622799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3128622799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564311398 + 1564311399.

It is an arithmetic number, because the mean of its divisors is an integer number (1564311399).

Almost surely, 2^3128622797 is an apocalyptic number.

It is an amenable number.

3128622797 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128622797 is an equidigital number, since it uses as much as digits as its factorization.

3128622797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 3128622797 is about 55934.0933331363. The cubic root of 3128622797 is about 1462.5736174694.

The spelling of 3128622797 in words is "three billion, one hundred twenty-eight million, six hundred twenty-two thousand, seven hundred ninety-seven".