11976987 has 16 divisors (see below), whose sum is σ = 17684352. Its totient is φ = 7149120.

The previous prime is 11976949. The next prime is 11977003. The reversal of 11976987 is 78967911.

It is a happy number.

11976987 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11976987 - 2¹⁴ = 11960603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11976907) 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, 498 + ... + 4919.

It is an arithmetic number, because the mean of its divisors is an integer number (1105272).

Almost surely, 2^11976987 is an apocalyptic number.

11976987 is a deficient number, since it is larger than the sum of its proper divisors (5707365).

11976987 is a wasteful number, since it uses less digits than its factorization.

11976987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498.

The product of its digits is 190512, while the sum is 48.

The square root of 11976987 is about 3460.7783806537. The cubic root of 11976987 is about 228.7964031396.

The spelling of 11976987 in words is "eleven million, nine hundred seventy-six thousand, nine hundred eighty-seven".