7906389697 has 2 divisors, whose sum is σ = 7906389698. Its totient is φ = 7906389696.

The previous prime is 7906389653. The next prime is 7906389713. The reversal of 7906389697 is 7969836097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7849251216 + 57138481 = 88596^2 + 7559^2 .

It is a cyclic number.

It is not a de Polignac number, because 7906389697 - 2²⁷ = 7772171969 is a prime.

It is not a weakly prime, because it can be changed into another prime (7906389097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3953194848 + 3953194849.

It is an arithmetic number, because the mean of its divisors is an integer number (3953194849).

Almost surely, 2^7906389697 is an apocalyptic number.

It is an amenable number.

7906389697 is a deficient number, since it is larger than the sum of its proper divisors (1).

7906389697 is an equidigital number, since it uses as much as digits as its factorization.

7906389697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30862944, while the sum is 64.

The square root of 7906389697 is about 88917.8817617694. The cubic root of 7906389697 is about 1992.1685153677.

The spelling of 7906389697 in words is "seven billion, nine hundred six million, three hundred eighty-nine thousand, six hundred ninety-seven".