3491558897 has 2 divisors, whose sum is σ = 3491558898. Its totient is φ = 3491558896.

The previous prime is 3491558879. The next prime is 3491558899. The reversal of 3491558897 is 7988551943.

Together with previous prime (3491558879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3221811121 + 269747776 = 56761^2 + 16424^2 .

It is a cyclic number.

It is not a de Polignac number, because 3491558897 - 2⁸ = 3491558641 is a prime.

Together with 3491558899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3491558899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745779448 + 1745779449.

It is an arithmetic number, because the mean of its divisors is an integer number (1745779449).

Almost surely, 2^3491558897 is an apocalyptic number.

It is an amenable number.

3491558897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3491558897 is an equidigital number, since it uses as much as digits as its factorization.

3491558897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 59.

The square root of 3491558897 is about 59089.4144242435. The cubic root of 3491558897 is about 1517.0729243187.

The spelling of 3491558897 in words is "three billion, four hundred ninety-one million, five hundred fifty-eight thousand, eight hundred ninety-seven".