3969528 has 16 divisors (see below), whose sum is σ = 9923880. Its totient is φ = 1323168.

The previous prime is 3969527. The next prime is 3969529. The reversal of 3969528 is 8259693.

It is an interprime number because it is at equal distance from previous prime (3969527) and next prime (3969529).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3969528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969527) 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, 82675 + ... + 82722.

Almost surely, 2^3969528 is an apocalyptic number.

It is an amenable number.

3969528 is an abundant number, since it is smaller than the sum of its proper divisors (5954352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3969528 is a wasteful number, since it uses less digits than its factorization.

3969528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165406 (or 165402 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 3969528 is about 1992.3674359917. The cubic root of 3969528 is about 158.3359832120.

The spelling of 3969528 in words is "three million, nine hundred sixty-nine thousand, five hundred twenty-eight".