3705091 has 4 divisors (see below), whose sum is σ = 3990112. Its totient is φ = 3420072.

The previous prime is 3705083. The next prime is 3705101. The reversal of 3705091 is 1905073.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1905073 = 19 ⋅100267.

It is a cyclic number.

It is not a de Polignac number, because 3705091 - 2³ = 3705083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3705041) 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, 142491 + ... + 142516.

It is an arithmetic number, because the mean of its divisors is an integer number (997528).

Almost surely, 2^3705091 is an apocalyptic number.

3705091 is a deficient number, since it is larger than the sum of its proper divisors (285021).

3705091 is a wasteful number, since it uses less digits than its factorization.

3705091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285020.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 3705091 is about 1924.8612937040. The cubic root of 3705091 is about 154.7389431526.

The spelling of 3705091 in words is "three million, seven hundred five thousand, ninety-one".