3438397 has 2 divisors, whose sum is σ = 3438398. Its totient is φ = 3438396.

The previous prime is 3438389. The next prime is 3438419. The reversal of 3438397 is 7938343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3218436 + 219961 = 1794^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 3438397 - 2³ = 3438389 is a prime.

It is a Chen prime.

3438397 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3438367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1719198 + 1719199.

It is an arithmetic number, because the mean of its divisors is an integer number (1719199).

Almost surely, 2^3438397 is an apocalyptic number.

It is an amenable number.

3438397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3438397 is an equidigital number, since it uses as much as digits as its factorization.

3438397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 3438397 is about 1854.2915089058. The cubic root of 3438397 is about 150.9333945976.

The spelling of 3438397 in words is "three million, four hundred thirty-eight thousand, three hundred ninety-seven".