3400399 has 2 divisors, whose sum is σ = 3400400. Its totient is φ = 3400398.

The previous prime is 3400393. The next prime is 3400409. The reversal of 3400399 is 9930043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3400399 - 2⁹ = 3399887 is a prime.

It is a Chen prime.

3400399 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3400393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700199 + 1700200.

It is an arithmetic number, because the mean of its divisors is an integer number (1700200).

Almost surely, 2^3400399 is an apocalyptic number.

3400399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400399 is an equidigital number, since it uses as much as digits as its factorization.

3400399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3400399 is about 1844.0170823504. The cubic root of 3400399 is about 150.3753414899.

The spelling of 3400399 in words is "three million, four hundred thousand, three hundred ninety-nine".