11993877 has 18 divisors (see below), whose sum is σ = 20153718. Its totient is φ = 6853392.

The previous prime is 11993843. The next prime is 11993897. The reversal of 11993877 is 77839911.

It can be written as a sum of positive squares in only one way, i.e., 10458756 + 1535121 = 3234^2 + 1239^2 .

It is not a de Polignac number, because 11993877 - 2¹⁰ = 11992853 is a prime.

It is a super-2 number, since 2×11993877² = 287706170982258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11993897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13158 + ... + 14039.

It is an arithmetic number, because the mean of its divisors is an integer number (1119651).

Almost surely, 2^11993877 is an apocalyptic number.

It is an amenable number.

11993877 is a deficient number, since it is larger than the sum of its proper divisors (8159841).

11993877 is a wasteful number, since it uses less digits than its factorization.

11993877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27217 (or 27207 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 11993877 is about 3463.2177234474. The cubic root of 11993877 is about 228.9039025230.

The spelling of 11993877 in words is "eleven million, nine hundred ninety-three thousand, eight hundred seventy-seven".