3922091 has 4 divisors (see below), whose sum is σ = 3942000. Its totient is φ = 3902184.

The previous prime is 3922081. The next prime is 3922099. The reversal of 3922091 is 1902293.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3922091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3922091.

It is not an unprimeable number, because it can be changed into a prime (3922099) 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, 9656 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (985500).

Almost surely, 2^3922091 is an apocalyptic number.

3922091 is a deficient number, since it is larger than the sum of its proper divisors (19909).

3922091 is a wasteful number, since it uses less digits than its factorization.

3922091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19908.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 3922091 is about 1980.4269741649. The cubic root of 3922091 is about 157.7027338063.

The spelling of 3922091 in words is "three million, nine hundred twenty-two thousand, ninety-one".