3726839 has 2 divisors, whose sum is σ = 3726840. Its totient is φ = 3726838.

The previous prime is 3726823. The next prime is 3726841. The reversal of 3726839 is 9386273.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3726839 - 2⁴ = 3726823 is a prime.

Together with 3726841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3726809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1863419 + 1863420.

It is an arithmetic number, because the mean of its divisors is an integer number (1863420).

Almost surely, 2^3726839 is an apocalyptic number.

3726839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3726839 is an equidigital number, since it uses as much as digits as its factorization.

3726839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 3726839 is about 1930.5022662509. The cubic root of 3726839 is about 155.0411129234.

The spelling of 3726839 in words is "three million, seven hundred twenty-six thousand, eight hundred thirty-nine".