3862091 has 4 divisors (see below), whose sum is σ = 4030032. Its totient is φ = 3694152.

The previous prime is 3862087. The next prime is 3862099. The reversal of 3862091 is 1902683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1902683 = 157 ⋅12119.

It is a cyclic number.

It is not a de Polignac number, because 3862091 - 2² = 3862087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3862099) 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, 83936 + ... + 83981.

It is an arithmetic number, because the mean of its divisors is an integer number (1007508).

Almost surely, 2^3862091 is an apocalyptic number.

3862091 is a deficient number, since it is larger than the sum of its proper divisors (167941).

3862091 is a wasteful number, since it uses less digits than its factorization.

3862091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167940.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 3862091 is about 1965.2203438800. The cubic root of 3862091 is about 156.8944210174.

Adding to 3862091 its product of nonzero digits (2592), we get a palindrome (3864683).

The spelling of 3862091 in words is "three million, eight hundred sixty-two thousand, ninety-one".