2705231 has 4 divisors (see below), whose sum is σ = 2718264. Its totient is φ = 2692200.

The previous prime is 2705203. The next prime is 2705243. The reversal of 2705231 is 1325072.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2705231 is a prime.

It is a super-2 number, since 2×2705231² = 14636549526722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705251) 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, 6200 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (679566).

2^2705231 is an apocalyptic number.

2705231 is a deficient number, since it is larger than the sum of its proper divisors (13033).

2705231 is a wasteful number, since it uses less digits than its factorization.

2705231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13032.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2705231 is about 1644.7586449081. The cubic root of 2705231 is about 139.3375334819.

The spelling of 2705231 in words is "two million, seven hundred five thousand, two hundred thirty-one".