3992349 has 4 divisors (see below), whose sum is σ = 5323136. Its totient is φ = 2661564.

The previous prime is 3992347. The next prime is 3992357. The reversal of 3992349 is 9432993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3992349 - 2¹ = 3992347 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992341) 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, 665389 + ... + 665394.

It is an arithmetic number, because the mean of its divisors is an integer number (1330784).

Almost surely, 2^3992349 is an apocalyptic number.

It is an amenable number.

3992349 is a deficient number, since it is larger than the sum of its proper divisors (1330787).

3992349 is a wasteful number, since it uses less digits than its factorization.

3992349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330786.

The product of its digits is 52488, while the sum is 39.

The square root of 3992349 is about 1998.0863344711. The cubic root of 3992349 is about 158.6388305529.

The spelling of 3992349 in words is "three million, nine hundred ninety-two thousand, three hundred forty-nine".