3490387 has 2 divisors, whose sum is σ = 3490388. Its totient is φ = 3490386.

The previous prime is 3490379. The next prime is 3490393. The reversal of 3490387 is 7830943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3490387 - 2³ = 3490379 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (3490307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745193 + 1745194.

It is an arithmetic number, because the mean of its divisors is an integer number (1745194).

Almost surely, 2^3490387 is an apocalyptic number.

3490387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3490387 is an equidigital number, since it uses as much as digits as its factorization.

3490387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3490387 is about 1868.2577445310. The cubic root of 3490387 is about 151.6903176631.

The spelling of 3490387 in words is "three million, four hundred ninety thousand, three hundred eighty-seven".