2238987 has 4 divisors (see below), whose sum is σ = 2985320. Its totient is φ = 1492656.

The previous prime is 2238961. The next prime is 2238989. The reversal of 2238987 is 7898322.

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

It is not a de Polignac number, because 2238987 - 2¹⁵ = 2206219 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 3⁴ + 8 + 9² + 8⁷ + 7⁴ .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238989) 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, 373162 + ... + 373167.

It is an arithmetic number, because the mean of its divisors is an integer number (746330).

2^2238987 is an apocalyptic number.

2238987 is a deficient number, since it is larger than the sum of its proper divisors (746333).

2238987 is an equidigital number, since it uses as much as digits as its factorization.

2238987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746332.

The product of its digits is 48384, while the sum is 39.

The square root of 2238987 is about 1496.3244968923. The cubic root of 2238987 is about 130.8229256825.

The spelling of 2238987 in words is "two million, two hundred thirty-eight thousand, nine hundred eighty-seven".