3531504 has 80 divisors (see below), whose sum is σ = 9820800. Its totient is φ = 1091328.

The previous prime is 3531499. The next prime is 3531509. The reversal of 3531504 is 4051353.

It is an interprime number because it is at equal distance from previous prime (3531499) and next prime (3531509).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59827 + ... + 59885.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

Almost surely, 2^3531504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3531504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4910400).

3531504 is an abundant number, since it is smaller than the sum of its proper divisors (6289296).

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

3531504 is a wasteful number, since it uses less digits than its factorization.

3531504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 3531504 is about 1879.2296293960. The cubic root of 3531504 is about 152.2836347614.

Adding to 3531504 its reverse (4051353), we get a palindrome (7582857).

The spelling of 3531504 in words is "three million, five hundred thirty-one thousand, five hundred four".