13849831 has 2 divisors, whose sum is σ = 13849832. Its totient is φ = 13849830.

The previous prime is 13849813. The next prime is 13849853. The reversal of 13849831 is 13894831.

Together with previous prime (13849813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13849831 - 2¹¹ = 13847783 is a prime.

It is a super-2 number, since 2×13849831² = 383635637457122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13849531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6924915 + 6924916.

It is an arithmetic number, because the mean of its divisors is an integer number (6924916).

Almost surely, 2^13849831 is an apocalyptic number.

13849831 is a deficient number, since it is larger than the sum of its proper divisors (1).

13849831 is an equidigital number, since it uses as much as digits as its factorization.

13849831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 13849831 is about 3721.5361075771. The cubic root of 13849831 is about 240.1493919429.

The spelling of 13849831 in words is "thirteen million, eight hundred forty-nine thousand, eight hundred thirty-one".