3870231 has 4 divisors (see below), whose sum is σ = 5160312. Its totient is φ = 2580152.

The previous prime is 3870227. The next prime is 3870239. The reversal of 3870231 is 1320783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320783 = 3 ⋅440261.

It is a cyclic number.

It is not a de Polignac number, because 3870231 - 2² = 3870227 is a prime.

It is a super-2 number, since 2×3870231² = 29957375986722, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870239) 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, 645036 + ... + 645041.

It is an arithmetic number, because the mean of its divisors is an integer number (1290078).

Almost surely, 2^3870231 is an apocalyptic number.

3870231 is a deficient number, since it is larger than the sum of its proper divisors (1290081).

3870231 is a wasteful number, since it uses less digits than its factorization.

3870231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290080.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 3870231 is about 1967.2902683641. The cubic root of 3870231 is about 157.0045707082.

The spelling of 3870231 in words is "three million, eight hundred seventy thousand, two hundred thirty-one".