3494209 has 2 divisors, whose sum is σ = 3494210. Its totient is φ = 3494208.

The previous prime is 3494191. The next prime is 3494221. The reversal of 3494209 is 9024943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 804609 = 1640^2 + 897^2 .

It is a cyclic number.

It is not a de Polignac number, because 3494209 - 2⁵ = 3494177 is a prime.

It is equal to p₂₄₉₇₇₂ and since 3494209 and 249772 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3494269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1747104 + 1747105.

It is an arithmetic number, because the mean of its divisors is an integer number (1747105).

Almost surely, 2^3494209 is an apocalyptic number.

It is an amenable number.

3494209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3494209 is an equidigital number, since it uses as much as digits as its factorization.

3494209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3494209 is about 1869.2803428058. The cubic root of 3494209 is about 151.7456648121.

The spelling of 3494209 in words is "three million, four hundred ninety-four thousand, two hundred nine".