13831743 has 4 divisors (see below), whose sum is σ = 18442328. Its totient is φ = 9221160.

The previous prime is 13831739. The next prime is 13831777. The reversal of 13831743 is 34713831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13831743 - 2² = 13831739 is a prime.

It is a super-2 number, since 2×13831743² = 382634228836098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13831743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2305288 + ... + 2305293.

It is an arithmetic number, because the mean of its divisors is an integer number (4610582).

Almost surely, 2^13831743 is an apocalyptic number.

13831743 is a deficient number, since it is larger than the sum of its proper divisors (4610585).

13831743 is an equidigital number, since it uses as much as digits as its factorization.

13831743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610584.

The product of its digits is 6048, while the sum is 30.

The square root of 13831743 is about 3719.1051343031. The cubic root of 13831743 is about 240.0448006643.

The spelling of 13831743 in words is "thirteen million, eight hundred thirty-one thousand, seven hundred forty-three".