11997677 has 4 divisors (see below), whose sum is σ = 12411420. Its totient is φ = 11583936.

The previous prime is 11997659. The next prime is 11997679. The reversal of 11997677 is 77679911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77679911 = 3313 ⋅23447.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 8797156 = 1789^2 + 2966^2 .

It is a cyclic number.

It is not a de Polignac number, because 11997677 - 2⁶ = 11997613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11997679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206828 + ... + 206885.

It is an arithmetic number, because the mean of its divisors is an integer number (3102855).

Almost surely, 2^11997677 is an apocalyptic number.

It is an amenable number.

11997677 is a deficient number, since it is larger than the sum of its proper divisors (413743).

11997677 is an equidigital number, since it uses as much as digits as its factorization.

11997677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413742.

The product of its digits is 166698, while the sum is 47.

The square root of 11997677 is about 3463.7663027404. The cubic root of 11997677 is about 228.9280743840.

The spelling of 11997677 in words is "eleven million, nine hundred ninety-seven thousand, six hundred seventy-seven".