3525639 has 8 divisors (see below), whose sum is σ = 5062512. Its totient is φ = 2169600.

The previous prime is 3525637. The next prime is 3525671. The reversal of 3525639 is 9365253.

3525639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3525639 - 2¹ = 3525637 is a prime.

3525639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45162 + ... + 45239.

It is an arithmetic number, because the mean of its divisors is an integer number (632814).

Almost surely, 2^3525639 is an apocalyptic number.

3525639 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3525639 is a deficient number, since it is larger than the sum of its proper divisors (1536873).

3525639 is a wasteful number, since it uses less digits than its factorization.

3525639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90417.

The product of its digits is 24300, while the sum is 33.

The square root of 3525639 is about 1877.6685010938. The cubic root of 3525639 is about 152.1992855806.

The spelling of 3525639 in words is "three million, five hundred twenty-five thousand, six hundred thirty-nine".