11426831 has 4 divisors (see below), whose sum is σ = 12305832. Its totient is φ = 10547832.

The previous prime is 11426827. The next prime is 11426861. The reversal of 11426831 is 13862411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13862411 = 83 ⋅167017.

It is a cyclic number.

It is not a de Polignac number, because 11426831 - 2² = 11426827 is a prime.

It is a super-2 number, since 2×11426831² = 261144933405122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 11426831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11426801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439481 + ... + 439506.

It is an arithmetic number, because the mean of its divisors is an integer number (3076458).

Almost surely, 2^11426831 is an apocalyptic number.

11426831 is a deficient number, since it is larger than the sum of its proper divisors (879001).

11426831 is an equidigital number, since it uses as much as digits as its factorization.

11426831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879000.

The product of its digits is 1152, while the sum is 26.

The square root of 11426831 is about 3380.3595962560. The cubic root of 11426831 is about 225.2381412766.

The spelling of 11426831 in words is "eleven million, four hundred twenty-six thousand, eight hundred thirty-one".