5418621 has 24 divisors (see below), whose sum is σ = 8725080. Its totient is φ = 3217536.

The previous prime is 5418617. The next prime is 5418643. The reversal of 5418621 is 1268145.

5418621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12996 + 5405625 = 114^2 + 2325^2 .

It is not a de Polignac number, because 5418621 - 2² = 5418617 is a prime.

It is a super-2 number, since 2×5418621² = 58722907083282, which contains 22 as substring.

5418621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5418221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2595 + ... + 4191.

It is an arithmetic number, because the mean of its divisors is an integer number (363545).

Almost surely, 2^5418621 is an apocalyptic number.

It is an amenable number.

5418621 is a deficient number, since it is larger than the sum of its proper divisors (3306459).

5418621 is a wasteful number, since it uses less digits than its factorization.

5418621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1642 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 5418621 is about 2327.7931609144. The cubic root of 5418621 is about 175.6424926958.

The spelling of 5418621 in words is "five million, four hundred eighteen thousand, six hundred twenty-one".