3691033 has 4 divisors (see below), whose sum is σ = 3818340. Its totient is φ = 3563728.

The previous prime is 3691031. The next prime is 3691043. The reversal of 3691033 is 3301963.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2550409 + 1140624 = 1597^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 3691033 - 2¹ = 3691031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3690989 and 3691007.

It is not an unprimeable number, because it can be changed into a prime (3691031) 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, 63610 + ... + 63667.

It is an arithmetic number, because the mean of its divisors is an integer number (954585).

Almost surely, 2^3691033 is an apocalyptic number.

It is an amenable number.

3691033 is a deficient number, since it is larger than the sum of its proper divisors (127307).

3691033 is a wasteful number, since it uses less digits than its factorization.

3691033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127306.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 3691033 is about 1921.2061315746. The cubic root of 3691033 is about 154.5429896115.

Adding to 3691033 its reverse (3301963), we get a palindrome (6992996).

The spelling of 3691033 in words is "three million, six hundred ninety-one thousand, thirty-three".