5278861 has 4 divisors (see below), whose sum is σ = 6032992. Its totient is φ = 4524732.

The previous prime is 5278843. The next prime is 5278877. The reversal of 5278861 is 1688725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5278861 - 2⁵ = 5278829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5278861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278831) 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, 377055 + ... + 377068.

It is an arithmetic number, because the mean of its divisors is an integer number (1508248).

Almost surely, 2^5278861 is an apocalyptic number.

It is an amenable number.

5278861 is a deficient number, since it is larger than the sum of its proper divisors (754131).

5278861 is an equidigital number, since it uses as much as digits as its factorization.

5278861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754130.

The product of its digits is 26880, while the sum is 37.

The square root of 5278861 is about 2297.5772021849. The cubic root of 5278861 is about 174.1192317066.

The spelling of 5278861 in words is "five million, two hundred seventy-eight thousand, eight hundred sixty-one".