27739485 has 12 divisors (see below), whose sum is σ = 48081852. Its totient is φ = 14794368.

The previous prime is 27739483. The next prime is 27739501. The reversal of 27739485 is 58493772.

It can be written as a sum of positive squares in 2 ways, for example, as 17665209 + 10074276 = 4203^2 + 3174^2 .

It is not a de Polignac number, because 27739485 - 2¹ = 27739483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 616433 = 27739485 / (2 + 7 + 7 + 3 + 9 + 4 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 27739485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27739483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308172 + ... + 308261.

It is an arithmetic number, because the mean of its divisors is an integer number (4006821).

Almost surely, 2^27739485 is an apocalyptic number.

It is an amenable number.

27739485 is a deficient number, since it is larger than the sum of its proper divisors (20342367).

27739485 is a wasteful number, since it uses less digits than its factorization.

27739485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616444 (or 616441 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 27739485 is about 5266.8287422319. The cubic root of 27739485 is about 302.7142029513.

It can be divided in two parts, 27739 and 485, that added together give a square (28224 = 168²).

The spelling of 27739485 in words is "twenty-seven million, seven hundred thirty-nine thousand, four hundred eighty-five".