12829731 has 16 divisors (see below), whose sum is σ = 18393600. Its totient is φ = 7928928.

The previous prime is 12829721. The next prime is 12829741. The reversal of 12829731 is 13792821.

It is an interprime number because it is at equal distance from previous prime (12829721) and next prime (12829741).

It is not a de Polignac number, because 12829731 - 2¹⁰ = 12828707 is a prime.

It is a super-2 number, since 2×12829731² = 329203995064722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12829692 and 12829701.

It is not an unprimeable number, because it can be changed into a prime (12829711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (1149600).

Almost surely, 2^12829731 is an apocalyptic number.

12829731 is a deficient number, since it is larger than the sum of its proper divisors (5563869).

12829731 is a wasteful number, since it uses less digits than its factorization.

12829731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858.

The product of its digits is 6048, while the sum is 33.

The square root of 12829731 is about 3581.8613876028. The cubic root of 12829731 is about 234.1023914527.

The spelling of 12829731 in words is "twelve million, eight hundred twenty-nine thousand, seven hundred thirty-one".