3992105 has 8 divisors (see below), whose sum is σ = 5159112. Its totient is φ = 2947968.

The previous prime is 3992099. The next prime is 3992123. The reversal of 3992105 is 5012993.

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 3988009 = 64^2 + 1997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3992105 - 2⁴ = 3992089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30644 + ... + 30773.

It is an arithmetic number, because the mean of its divisors is an integer number (644889).

Almost surely, 2^3992105 is an apocalyptic number.

It is an amenable number.

3992105 is a deficient number, since it is larger than the sum of its proper divisors (1167007).

3992105 is a wasteful number, since it uses less digits than its factorization.

3992105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61435.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 3992105 is about 1998.0252751154. The cubic root of 3992105 is about 158.6355986492.

The spelling of 3992105 in words is "three million, nine hundred ninety-two thousand, one hundred five".