3497891 has 2 divisors, whose sum is σ = 3497892. Its totient is φ = 3497890.

The previous prime is 3497873. The next prime is 3497899. The reversal of 3497891 is 1987943.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3497891 - 2⁶ = 3497827 is a prime.

It is not a weakly prime, because it can be changed into another prime (3497899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748945 + 1748946.

It is an arithmetic number, because the mean of its divisors is an integer number (1748946).

Almost surely, 2^3497891 is an apocalyptic number.

3497891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3497891 is an equidigital number, since it uses as much as digits as its factorization.

3497891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 3497891 is about 1870.2649544917. The cubic root of 3497891 is about 151.7989464371.

The spelling of 3497891 in words is "three million, four hundred ninety-seven thousand, eight hundred ninety-one".