3822091 has 16 divisors (see below), whose sum is σ = 4763584. Its totient is φ = 2985984.

The previous prime is 3822073. The next prime is 3822103. The reversal of 3822091 is 1902283.

It is a 12-Lehmer number, since φ(3822091) divides (3822091-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 3822091 - 2⁷ = 3821963 is a prime.

It is a super-2 number, since 2×3822091² = 29216759224562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3822031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8611 + ... + 9043.

It is an arithmetic number, because the mean of its divisors is an integer number (297724).

Almost surely, 2^3822091 is an apocalyptic number.

3822091 is a deficient number, since it is larger than the sum of its proper divisors (941493).

3822091 is a wasteful number, since it uses less digits than its factorization.

3822091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

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

The square root of 3822091 is about 1955.0168797225. The cubic root of 3822091 is about 156.3508839695.

The spelling of 3822091 in words is "three million, eight hundred twenty-two thousand, ninety-one".