5420641 has 4 divisors (see below), whose sum is σ = 5425300. Its totient is φ = 5415984.

The previous prime is 5420633. The next prime is 5420669. The reversal of 5420641 is 1460245.

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 646416 + 4774225 = 804^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 5420641 - 2³ = 5420633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5420621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075 + ... + 3463.

It is an arithmetic number, because the mean of its divisors is an integer number (1356325).

Almost surely, 2^5420641 is an apocalyptic number.

5420641 is the 1473-rd centered pentagonal number.

It is an amenable number.

5420641 is a deficient number, since it is larger than the sum of its proper divisors (4659).

5420641 is a wasteful number, since it uses less digits than its factorization.

5420641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 5420641 is about 2328.2270078324. The cubic root of 5420641 is about 175.6643158224.

Adding to 5420641 its reverse (1460245), we get a palindrome (6880886).

The spelling of 5420641 in words is "five million, four hundred twenty thousand, six hundred forty-one".