4360621 has 4 divisors (see below), whose sum is σ = 4365244. Its totient is φ = 4356000.

The previous prime is 4360589. The next prime is 4360627. The reversal of 4360621 is 1260634.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 1755625 = 1614^2 + 1325^2 .

It is a 3-Lehmer number, since φ(4360621) divides (4360621-1)³.

It is a cyclic number.

It is not a de Polignac number, because 4360621 - 2⁵ = 4360589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4360592 and 4360601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4360627) 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, 330 + ... + 2971.

It is an arithmetic number, because the mean of its divisors is an integer number (1091311).

It is a Poulet number, since it divides 2^4360620-1.

Almost surely, 2^4360621 is an apocalyptic number.

4360621 is the 1321-st heptagonal number.

It is an amenable number.

4360621 is a deficient number, since it is larger than the sum of its proper divisors (4623).

4360621 is a wasteful number, since it uses less digits than its factorization.

4360621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4360621 is about 2088.2099990183. The cubic root of 4360621 is about 163.3739391846.

The spelling of 4360621 in words is "four million, three hundred sixty thousand, six hundred twenty-one".