27626985 has 24 divisors (see below), whose sum is σ = 48150024. Its totient is φ = 14653440.

The previous prime is 27626959. The next prime is 27626987. The reversal of 27626985 is 58962672.

It can be written as a sum of positive squares in 4 ways, for example, as 127449 + 27499536 = 357^2 + 5244^2 .

It is not a de Polignac number, because 27626985 - 2⁵ = 27626953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27626985.

It is not an unprimeable number, because it can be changed into a prime (27626987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7095 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (2006251).

Almost surely, 2^27626985 is an apocalyptic number.

It is an amenable number.

27626985 is a deficient number, since it is larger than the sum of its proper divisors (20523039).

27626985 is a wasteful number, since it uses less digits than its factorization.

27626985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385 (or 3382 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 27626985 is about 5256.1378406583. The cubic root of 27626985 is about 302.3044201690.

It can be divided in two parts, 276 and 26985, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 27626985 in words is "twenty-seven million, six hundred twenty-six thousand, nine hundred eighty-five".