11980731 has 8 divisors (see below), whose sum is σ = 18256384. Its totient is φ = 6846120.

The previous prime is 11980693. The next prime is 11980763. The reversal of 11980731 is 13708911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11980731 - 2⁷ = 11980603 is a prime.

It is a super-2 number, since 2×11980731² = 287075830588722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11980781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285235 + ... + 285276.

It is an arithmetic number, because the mean of its divisors is an integer number (2282048).

Almost surely, 2^11980731 is an apocalyptic number.

11980731 is a deficient number, since it is larger than the sum of its proper divisors (6275653).

11980731 is an equidigital number, since it uses as much as digits as its factorization.

11980731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570521.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 11980731 is about 3461.3192571619. The cubic root of 11980731 is about 228.8202412020.

The spelling of 11980731 in words is "eleven million, nine hundred eighty thousand, seven hundred thirty-one".