2908231 has 4 divisors (see below), whose sum is σ = 2949264. Its totient is φ = 2867200.

The previous prime is 2908183. The next prime is 2908261. The reversal of 2908231 is 1328092.

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

It is a cyclic number.

It is not a de Polignac number, because 2908231 - 2¹³ = 2900039 is a prime.

It is a super-2 number, since 2×2908231² = 16915615098722, which contains 22 as substring.

It is a Duffinian number.

2908231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2908196 and 2908205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2908261) 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, 20410 + ... + 20551.

It is an arithmetic number, because the mean of its divisors is an integer number (737316).

2^2908231 is an apocalyptic number.

2908231 is a deficient number, since it is larger than the sum of its proper divisors (41033).

2908231 is an equidigital number, since it uses as much as digits as its factorization.

2908231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41032.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2908231 is about 1705.3536290166. The cubic root of 2908231 is about 142.7391040662.

The spelling of 2908231 in words is "two million, nine hundred eight thousand, two hundred thirty-one".