11880697 has 4 divisors (see below), whose sum is σ = 11889396. Its totient is φ = 11872000.

The previous prime is 11880689. The next prime is 11880721. The reversal of 11880697 is 79608811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79608811 = 5051 ⋅15761.

It can be written as a sum of positive squares in 2 ways, for example, as 8856576 + 3024121 = 2976^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 11880697 - 2³ = 11880689 is a prime.

It is a super-2 number, since 2×11880697² = 282301922411618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11880607) 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, 1804 + ... + 5197.

It is an arithmetic number, because the mean of its divisors is an integer number (2972349).

Almost surely, 2^11880697 is an apocalyptic number.

It is an amenable number.

11880697 is a deficient number, since it is larger than the sum of its proper divisors (8699).

11880697 is an equidigital number, since it uses as much as digits as its factorization.

11880697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8698.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 11880697 is about 3446.8386965450. The cubic root of 11880697 is about 228.1816099454.

The spelling of 11880697 in words is "eleven million, eight hundred eighty thousand, six hundred ninety-seven".