3397557881 has 2 divisors, whose sum is σ = 3397557882. Its totient is φ = 3397557880.

The previous prime is 3397557869. The next prime is 3397557937. The reversal of 3397557881 is 1887557933.

It is a happy number.

3397557881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3397557937) can be obtained adding 3397557881 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3024450025 + 373107856 = 54995^2 + 19316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3397557881 is a prime.

It is a super-2 number, since 2×3397557881² = 23086799109490420322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3397557841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1698778940 + 1698778941.

It is an arithmetic number, because the mean of its divisors is an integer number (1698778941).

Almost surely, 2^3397557881 is an apocalyptic number.

It is an amenable number.

3397557881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3397557881 is an equidigital number, since it uses as much as digits as its factorization.

3397557881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 56.

The square root of 3397557881 is about 58288.5741891153. The cubic root of 3397557881 is about 1503.3344902534.

The spelling of 3397557881 in words is "three billion, three hundred ninety-seven million, five hundred fifty-seven thousand, eight hundred eighty-one".