5278949 has 4 divisors (see below), whose sum is σ = 5685036. Its totient is φ = 4872864.

The previous prime is 5278943. The next prime is 5278951. The reversal of 5278949 is 9498725.

It is a happy number.

5278949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 3678724 = 1265^2 + 1918^2 .

It is a cyclic number.

It is not a de Polignac number, because 5278949 - 2¹⁶ = 5213413 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278943) 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, 203024 + ... + 203049.

It is an arithmetic number, because the mean of its divisors is an integer number (1421259).

Almost surely, 2^5278949 is an apocalyptic number.

It is an amenable number.

5278949 is a deficient number, since it is larger than the sum of its proper divisors (406087).

5278949 is a wasteful number, since it uses less digits than its factorization.

5278949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406086.

The product of its digits is 181440, while the sum is 44.

The square root of 5278949 is about 2297.5963527130. The cubic root of 5278949 is about 174.1201992390.

The spelling of 5278949 in words is "five million, two hundred seventy-eight thousand, nine hundred forty-nine".