5428249 has 4 divisors (see below), whose sum is σ = 5615460. Its totient is φ = 5241040.

The previous prime is 5428237. The next prime is 5428261. The reversal of 5428249 is 9428245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9428245 = 5 ⋅1885649.

It is an interprime number because it is at equal distance from previous prime (5428237) and next prime (5428261).

It can be written as a sum of positive squares in 2 ways, for example, as 1254400 + 4173849 = 1120^2 + 2043^2 .

It is a cyclic number.

It is not a de Polignac number, because 5428249 - 2¹³ = 5420057 is a prime.

It is a Duffinian number.

5428249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5428229) 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, 93562 + ... + 93619.

It is an arithmetic number, because the mean of its divisors is an integer number (1403865).

Almost surely, 2^5428249 is an apocalyptic number.

It is an amenable number.

5428249 is a deficient number, since it is larger than the sum of its proper divisors (187211).

5428249 is a wasteful number, since it uses less digits than its factorization.

5428249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187210.

The product of its digits is 23040, while the sum is 34.

The square root of 5428249 is about 2329.8602962410. The cubic root of 5428249 is about 175.7464604343.

The spelling of 5428249 in words is "five million, four hundred twenty-eight thousand, two hundred forty-nine".