3809431 has 2 divisors, whose sum is σ = 3809432. Its totient is φ = 3809430.

The previous prime is 3809423. The next prime is 3809461. The reversal of 3809431 is 1349083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3809431 - 2³ = 3809423 is a prime.

It is a super-2 number, since 2×3809431² = 29023529087522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3809431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3809461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1904715 + 1904716.

It is an arithmetic number, because the mean of its divisors is an integer number (1904716).

Almost surely, 2^3809431 is an apocalyptic number.

3809431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3809431 is an equidigital number, since it uses as much as digits as its factorization.

3809431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3809431 is about 1951.7763703867. The cubic root of 3809431 is about 156.1780648072.

The spelling of 3809431 in words is "three million, eight hundred nine thousand, four hundred thirty-one".