3493661 has 2 divisors, whose sum is σ = 3493662. Its totient is φ = 3493660.

The previous prime is 3493597. The next prime is 3493667. The reversal of 3493661 is 1663943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3308761 + 184900 = 1819^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 3493661 - 2⁶ = 3493597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3493667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1746830 + 1746831.

It is an arithmetic number, because the mean of its divisors is an integer number (1746831).

Almost surely, 2^3493661 is an apocalyptic number.

It is an amenable number.

3493661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3493661 is an equidigital number, since it uses as much as digits as its factorization.

3493661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 3493661 is about 1869.1337565835. The cubic root of 3493661 is about 151.7377315935.

The spelling of 3493661 in words is "three million, four hundred ninety-three thousand, six hundred sixty-one".