5028409 has 2 divisors, whose sum is σ = 5028410. Its totient is φ = 5028408.

The previous prime is 5028391. The next prime is 5028431. The reversal of 5028409 is 9048205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3988009 + 1040400 = 1997^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 5028409 - 2¹³ = 5020217 is a prime.

It is not a weakly prime, because it can be changed into another prime (5028449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2514204 + 2514205.

It is an arithmetic number, because the mean of its divisors is an integer number (2514205).

Almost surely, 2^5028409 is an apocalyptic number.

It is an amenable number.

5028409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5028409 is an equidigital number, since it uses as much as digits as its factorization.

5028409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 5028409 is about 2242.4114252295. The cubic root of 5028409 is about 171.3208412754.

It can be divided in two parts, 502 and 8409, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 5028409 in words is "five million, twenty-eight thousand, four hundred nine".