2236987 has 2 divisors, whose sum is σ = 2236988. Its totient is φ = 2236986.

The previous prime is 2236981. The next prime is 2236999. The reversal of 2236987 is 7896322.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2236987 is a prime.

It is a super-2 number, since 2×2236987² = 10008221676338, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 3 + 6³ + 9 + 8⁷ + 7³ .

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (2236981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118493 + 1118494.

It is an arithmetic number, because the mean of its divisors is an integer number (1118494).

2^2236987 is an apocalyptic number.

2236987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2236987 is an equidigital number, since it uses as much as digits as its factorization.

2236987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 2236987 is about 1495.6560433469. The cubic root of 2236987 is about 130.7839610680.

It can be divided in two parts, 2236 and 987, that added together give a palindrome (3223).

The spelling of 2236987 in words is "two million, two hundred thirty-six thousand, nine hundred eighty-seven".