5420643 has 16 divisors (see below), whose sum is σ = 7737600. Its totient is φ = 3365280.

The previous prime is 5420633. The next prime is 5420669. The reversal of 5420643 is 3460245.

It is not a de Polignac number, because 5420643 - 2⁴ = 5420627 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5420633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2698 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (483600).

Almost surely, 2^5420643 is an apocalyptic number.

5420643 is a deficient number, since it is larger than the sum of its proper divisors (2316957).

5420643 is a wasteful number, since it uses less digits than its factorization.

5420643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 5420643 is about 2328.2274373437. The cubic root of 5420643 is about 175.6643374268.

Adding to 5420643 its reverse (3460245), we get a palindrome (8880888).

The spelling of 5420643 in words is "five million, four hundred twenty thousand, six hundred forty-three".