11690731 has 16 divisors (see below), whose sum is σ = 12995584. Its totient is φ = 10450944.

The previous prime is 11690717. The next prime is 11690737. The reversal of 11690731 is 13709611.

It is a cyclic number.

It is not a de Polignac number, because 11690731 - 2²¹ = 9593579 is a prime.

It is a super-2 number, since 2×11690731² = 273346382628722, 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 11690731.

It is not an unprimeable number, because it can be changed into a prime (11690737) 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 15 ways as a sum of consecutive naturals, for example, 91990 + ... + 92116.

It is an arithmetic number, because the mean of its divisors is an integer number (812224).

Almost surely, 2^11690731 is an apocalyptic number.

11690731 is a deficient number, since it is larger than the sum of its proper divisors (1304853).

11690731 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (11690730) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (310).

11690731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 11690731 is about 3419.1710983804. The cubic root of 11690731 is about 226.9589024294.

It can be divided in two parts, 11690 and 731, that added together give a palindrome (12421).

The spelling of 11690731 in words is "eleven million, six hundred ninety thousand, seven hundred thirty-one".