3919842697 has 2 divisors, whose sum is σ = 3919842698. Its totient is φ = 3919842696.

The previous prime is 3919842691. The next prime is 3919842701. The reversal of 3919842697 is 7962489193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3782742016 + 137100681 = 61504^2 + 11709^2 .

It is a cyclic number.

It is not a de Polignac number, because 3919842697 - 2⁷ = 3919842569 is a prime.

It is not a weakly prime, because it can be changed into another prime (3919842691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959921348 + 1959921349.

It is an arithmetic number, because the mean of its divisors is an integer number (1959921349).

Almost surely, 2^3919842697 is an apocalyptic number.

It is an amenable number.

3919842697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3919842697 is an equidigital number, since it uses as much as digits as its factorization.

3919842697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 58.

The square root of 3919842697 is about 62608.6471423876. The cubic root of 3919842697 is about 1576.7259416044.

The spelling of 3919842697 in words is "three billion, nine hundred nineteen million, eight hundred forty-two thousand, six hundred ninety-seven".