3491473 has 2 divisors, whose sum is σ = 3491474. Its totient is φ = 3491472.

The previous prime is 3491461. The next prime is 3491479. The reversal of 3491473 is 3741943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2765569 + 725904 = 1663^2 + 852^2 .

It is an emirp because it is prime and its reverse (3741943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3491473 - 2⁵ = 3491441 is a prime.

It is not a weakly prime, because it can be changed into another prime (3491479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745736 + 1745737.

It is an arithmetic number, because the mean of its divisors is an integer number (1745737).

Almost surely, 2^3491473 is an apocalyptic number.

It is an amenable number.

3491473 is a deficient number, since it is larger than the sum of its proper divisors (1).

3491473 is an equidigital number, since it uses as much as digits as its factorization.

3491473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 3491473 is about 1868.5483670486. The cubic root of 3491473 is about 151.7060483545.

The spelling of 3491473 in words is "three million, four hundred ninety-one thousand, four hundred seventy-three".