3842091 has 18 divisors (see below), whose sum is σ = 6085092. Its totient is φ = 2316720.

The previous prime is 3842089. The next prime is 3842101. The reversal of 3842091 is 1902483.

It is not a de Polignac number, because 3842091 - 2¹ = 3842089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3842011) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19405 + ... + 19601.

Almost surely, 2^3842091 is an apocalyptic number.

3842091 is a deficient number, since it is larger than the sum of its proper divisors (2243001).

3842091 is a wasteful number, since it uses less digits than its factorization.

3842091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3842091 is about 1960.1252511000. The cubic root of 3842091 is about 156.6231240594.

The spelling of 3842091 in words is "three million, eight hundred forty-two thousand, ninety-one".