5392421 has 4 divisors (see below), whose sum is σ = 5453100. Its totient is φ = 5331744.

The previous prime is 5392411. The next prime is 5392433. The reversal of 5392421 is 1242935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1242935 = 5 ⋅248587.

It can be written as a sum of positive squares in 2 ways, for example, as 2927521 + 2464900 = 1711^2 + 1570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5392421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5392411) 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, 30206 + ... + 30383.

It is an arithmetic number, because the mean of its divisors is an integer number (1363275).

Almost surely, 2^5392421 is an apocalyptic number.

It is an amenable number.

5392421 is a deficient number, since it is larger than the sum of its proper divisors (60679).

5392421 is an equidigital number, since it uses as much as digits as its factorization.

5392421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60678.

The product of its digits is 2160, while the sum is 26.

The square root of 5392421 is about 2322.1586939742. The cubic root of 5392421 is about 175.3589476025.

The spelling of 5392421 in words is "five million, three hundred ninety-two thousand, four hundred twenty-one".