11980631 has 16 divisors (see below), whose sum is σ = 14261184. Its totient is φ = 9951744.

The previous prime is 11980613. The next prime is 11980669. The reversal of 11980631 is 13608911.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11980631 is a prime.

It is a super-2 number, since 2×11980631² = 287071038316322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11980594 and 11980603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11980691) 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, 3905 + ... + 6261.

It is an arithmetic number, because the mean of its divisors is an integer number (891324).

Almost surely, 2^11980631 is an apocalyptic number.

11980631 is a deficient number, since it is larger than the sum of its proper divisors (2280553).

11980631 is a wasteful number, since it uses less digits than its factorization.

11980631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 11980631 is about 3461.3048117726. The cubic root of 11980631 is about 228.8196045662.

The spelling of 11980631 in words is "eleven million, nine hundred eighty thousand, six hundred thirty-one".