3992529 has 4 divisors (see below), whose sum is σ = 5323376. Its totient is φ = 2661684.

The previous prime is 3992519. The next prime is 3992531. The reversal of 3992529 is 9252993.

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: 9252993 = 3 ⋅3084331.

It is not a de Polignac number, because 3992529 - 2¹² = 3988433 is a prime.

It is a D-number.

It is a Duffinian number.

3992529 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3992519) 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, 665419 + ... + 665424.

It is an arithmetic number, because the mean of its divisors is an integer number (1330844).

Almost surely, 2^3992529 is an apocalyptic number.

It is an amenable number.

3992529 is a deficient number, since it is larger than the sum of its proper divisors (1330847).

3992529 is a wasteful number, since it uses less digits than its factorization.

3992529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330846.

The product of its digits is 43740, while the sum is 39.

The square root of 3992529 is about 1998.1313770621. The cubic root of 3992529 is about 158.6412146598.

The spelling of 3992529 in words is "three million, nine hundred ninety-two thousand, five hundred twenty-nine".