2271387 has 8 divisors (see below), whose sum is σ = 3206736. Its totient is φ = 1425152.

The previous prime is 2271383. The next prime is 2271391. The reversal of 2271387 is 7831722.

It is an interprime number because it is at equal distance from previous prime (2271383) and next prime (2271391).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2271387 - 2² = 2271383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2271383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22218 + ... + 22319.

It is an arithmetic number, because the mean of its divisors is an integer number (400842).

2^2271387 is an apocalyptic number.

2271387 is a deficient number, since it is larger than the sum of its proper divisors (935349).

2271387 is a wasteful number, since it uses less digits than its factorization.

2271387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44557.

The product of its digits is 4704, while the sum is 30.

The square root of 2271387 is about 1507.1121391589. The cubic root of 2271387 is about 131.4509448026.

The spelling of 2271387 in words is "two million, two hundred seventy-one thousand, three hundred eighty-seven".