2817238 has 4 divisors (see below), whose sum is σ = 4225860. Its totient is φ = 1408618.

The previous prime is 2817229. The next prime is 2817239. The reversal of 2817238 is 8327182.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2817239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704308 + ... + 704311.

It is an arithmetic number, because the mean of its divisors is an integer number (1056465).

2^2817238 is an apocalyptic number.

2817238 is a deficient number, since it is larger than the sum of its proper divisors (1408622).

2817238 is a wasteful number, since it uses less digits than its factorization.

2817238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408621.

The product of its digits is 5376, while the sum is 31.

The square root of 2817238 is about 1678.4629873786. The cubic root of 2817238 is about 141.2346243738.

The spelling of 2817238 in words is "two million, eight hundred seventeen thousand, two hundred thirty-eight".