3693021 has 8 divisors (see below), whose sum is σ = 4962144. Its totient is φ = 2442960.

The previous prime is 3692977. The next prime is 3693037. The reversal of 3693021 is 1203963.

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

It is not a de Polignac number, because 3693021 - 2¹⁴ = 3676637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3692982 and 3693000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3693721) 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, 4306 + ... + 5091.

It is an arithmetic number, because the mean of its divisors is an integer number (620268).

Almost surely, 2^3693021 is an apocalyptic number.

It is an amenable number.

3693021 is a deficient number, since it is larger than the sum of its proper divisors (1269123).

3693021 is a wasteful number, since it uses less digits than its factorization.

3693021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 3693021 is about 1921.7234452439. The cubic root of 3693021 is about 154.5707303841.

Adding to 3693021 its reverse (1203963), we get a palindrome (4896984).

The spelling of 3693021 in words is "three million, six hundred ninety-three thousand, twenty-one".