3616021 has 4 divisors (see below), whose sum is σ = 3651232. Its totient is φ = 3580812.

The previous prime is 3616013. The next prime is 3616027. The reversal of 3616021 is 1206163.

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 3616021 - 2³ = 3616013 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3616021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3616027) 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, 17451 + ... + 17656.

It is an arithmetic number, because the mean of its divisors is an integer number (912808).

Almost surely, 2^3616021 is an apocalyptic number.

It is an amenable number.

3616021 is a deficient number, since it is larger than the sum of its proper divisors (35211).

3616021 is a wasteful number, since it uses less digits than its factorization.

3616021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35210.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3616021 is about 1901.5838135617. The cubic root of 3616021 is about 153.4889027051.

The spelling of 3616021 in words is "three million, six hundred sixteen thousand, twenty-one".