3826399 has 2 divisors, whose sum is σ = 3826400. Its totient is φ = 3826398.

The previous prime is 3826393. The next prime is 3826409. The reversal of 3826399 is 9936283.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3826399 - 2⁵ = 3826367 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3826393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913199 + 1913200.

It is an arithmetic number, because the mean of its divisors is an integer number (1913200).

Almost surely, 2^3826399 is an apocalyptic number.

3826399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3826399 is an equidigital number, since it uses as much as digits as its factorization.

3826399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 3826399 is about 1956.1183502028. The cubic root of 3826399 is about 156.4096045933.

It can be divided in two parts, 3826 and 399, that added together give a square (4225 = 65²).

The spelling of 3826399 in words is "three million, eight hundred twenty-six thousand, three hundred ninety-nine".