3531687 has 8 divisors (see below), whose sum is σ = 4836336. Its totient is φ = 2290752.

The previous prime is 3531683. The next prime is 3531691. The reversal of 3531687 is 7861353.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3531683) and next prime (3531691).

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

It is not a de Polignac number, because 3531687 - 2² = 3531683 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15798 + ... + 16019.

It is an arithmetic number, because the mean of its divisors is an integer number (604542).

Almost surely, 2^3531687 is an apocalyptic number.

3531687 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3531687 is a deficient number, since it is larger than the sum of its proper divisors (1304649).

3531687 is a wasteful number, since it uses less digits than its factorization.

3531687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31857.

The product of its digits is 15120, while the sum is 33.

The square root of 3531687 is about 1879.2783189299. The cubic root of 3531687 is about 152.2862651255.

The spelling of 3531687 in words is "three million, five hundred thirty-one thousand, six hundred eighty-seven".