3503689 has 4 divisors (see below), whose sum is σ = 4004224. Its totient is φ = 3003156.

The previous prime is 3503677. The next prime is 3503699. The reversal of 3503689 is 9863053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3503689 - 2⁷ = 3503561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3503609) 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, 250257 + ... + 250270.

It is an arithmetic number, because the mean of its divisors is an integer number (1001056).

Almost surely, 2^3503689 is an apocalyptic number.

It is an amenable number.

3503689 is a deficient number, since it is larger than the sum of its proper divisors (500535).

3503689 is an equidigital number, since it uses as much as digits as its factorization.

3503689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500534.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3503689 is about 1871.8143604535. The cubic root of 3503689 is about 151.8827726099.

Adding to 3503689 its product of nonzero digits (19440), we get a square (3523129 = 1877²).

The spelling of 3503689 in words is "three million, five hundred three thousand, six hundred eighty-nine".