3525749 has 8 divisors (see below), whose sum is σ = 3759768. Its totient is φ = 3294720.

The previous prime is 3525727. The next prime is 3525761. The reversal of 3525749 is 9475253.

It can be written as a sum of positive squares in 4 ways, for example, as 1423249 + 2102500 = 1193^2 + 1450^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3525749 - 2¹² = 3521653 is a prime.

It is a super-2 number, since 2×3525749² = 24861812022002, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹³ + 5 + 2⁷ + 5³ + 7⁷ + 4¹⁰ + 9⁵ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525779) 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 7 ways as a sum of consecutive naturals, for example, 2009 + ... + 3329.

It is an arithmetic number, because the mean of its divisors is an integer number (469971).

Almost surely, 2^3525749 is an apocalyptic number.

It is an amenable number.

3525749 is a deficient number, since it is larger than the sum of its proper divisors (234019).

3525749 is a wasteful number, since it uses less digits than its factorization.

3525749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495.

The product of its digits is 37800, while the sum is 35.

The square root of 3525749 is about 1877.6977925108. The cubic root of 3525749 is about 152.2008684376.

The spelling of 3525749 in words is "three million, five hundred twenty-five thousand, seven hundred forty-nine".