11287995 has 16 divisors (see below), whose sum is σ = 19011840. Its totient is φ = 5703264.

The previous prime is 11287981. The next prime is 11288003. The reversal of 11287995 is 59978211.

11287995 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11287995 - 2⁸ = 11287739 is a prime.

It is a super-2 number, since 2×11287995² = 254837662240050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19519 + ... + 20088.

It is an arithmetic number, because the mean of its divisors is an integer number (1188240).

Almost surely, 2^11287995 is an apocalyptic number.

11287995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11287995 is a deficient number, since it is larger than the sum of its proper divisors (7723845).

11287995 is a wasteful number, since it uses less digits than its factorization.

11287995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39634.

The product of its digits is 45360, while the sum is 42.

The square root of 11287995 is about 3359.7611522250. The cubic root of 11287995 is about 224.3222071722.

The spelling of 11287995 in words is "eleven million, two hundred eighty-seven thousand, nine hundred ninety-five".