11097987 has 4 divisors (see below), whose sum is σ = 14797320. Its totient is φ = 7398656.

The previous prime is 11097953. The next prime is 11097997. The reversal of 11097987 is 78979011.

It is a happy number.

11097987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11097987 - 2⁸ = 11097731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11097917) 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, 1849662 + ... + 1849667.

It is an arithmetic number, because the mean of its divisors is an integer number (3699330).

Almost surely, 2^11097987 is an apocalyptic number.

11097987 is a deficient number, since it is larger than the sum of its proper divisors (3699333).

11097987 is an equidigital number, since it uses as much as digits as its factorization.

11097987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699332.

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 11097987 is about 3331.3641350054. The cubic root of 11097987 is about 223.0564249558.

The spelling of 11097987 in words is "eleven million, ninety-seven thousand, nine hundred eighty-seven".