3992513 has 4 divisors (see below), whose sum is σ = 4562880. Its totient is φ = 3422148.

The previous prime is 3992503. The next prime is 3992519. The reversal of 3992513 is 3152993.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3152993 = 19 ⋅165947.

It is a cyclic number.

It is not a de Polignac number, because 3992513 - 2⁸ = 3992257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3992513.

It is not an unprimeable number, because it can be changed into a prime (3992519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285173 + ... + 285186.

It is an arithmetic number, because the mean of its divisors is an integer number (1140720).

Almost surely, 2^3992513 is an apocalyptic number.

It is an amenable number.

3992513 is a deficient number, since it is larger than the sum of its proper divisors (570367).

3992513 is an equidigital number, since it uses as much as digits as its factorization.

3992513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570366.

The product of its digits is 7290, while the sum is 32.

The square root of 3992513 is about 1998.1273733173. The cubic root of 3992513 is about 158.6410027421.

The spelling of 3992513 in words is "three million, nine hundred ninety-two thousand, five hundred thirteen".