3420978097 has 2 divisors, whose sum is σ = 3420978098. Its totient is φ = 3420978096.

The previous prime is 3420978083. The next prime is 3420978137. The reversal of 3420978097 is 7908790243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3355189776 + 65788321 = 57924^2 + 8111^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420978097 - 2¹⁵ = 3420945329 is a prime.

It is a super-2 number, since 2×3420978097² = 23406182280307482818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3420978097.

It is not a weakly prime, because it can be changed into another prime (3420978397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710489048 + 1710489049.

It is an arithmetic number, because the mean of its divisors is an integer number (1710489049).

Almost surely, 2^3420978097 is an apocalyptic number.

It is an amenable number.

3420978097 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420978097 is an equidigital number, since it uses as much as digits as its factorization.

3420978097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 3420978097 is about 58489.1280239328. The cubic root of 3420978097 is about 1506.7808702677.

The spelling of 3420978097 in words is "three billion, four hundred twenty million, nine hundred seventy-eight thousand, ninety-seven".