3397494181 has 2 divisors, whose sum is σ = 3397494182. Its totient is φ = 3397494180.

The previous prime is 3397494167. The next prime is 3397494187. The reversal of 3397494181 is 1814947933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1935120100 + 1462374081 = 43990^2 + 38241^2 .

It is a cyclic number.

It is not a de Polignac number, because 3397494181 - 2⁷ = 3397494053 is a prime.

It is a super-2 number, since 2×3397494181² = 23085933419857721522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3397494187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1698747090 + 1698747091.

It is an arithmetic number, because the mean of its divisors is an integer number (1698747091).

Almost surely, 2^3397494181 is an apocalyptic number.

It is an amenable number.

3397494181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3397494181 is an equidigital number, since it uses as much as digits as its factorization.

3397494181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The square root of 3397494181 is about 58288.0277672868. The cubic root of 3397494181 is about 1503.3250949751.

The spelling of 3397494181 in words is "three billion, three hundred ninety-seven million, four hundred ninety-four thousand, one hundred eighty-one".