27965475 has 18 divisors (see below), whose sum is σ = 50089676. Its totient is φ = 14914800.

The previous prime is 27965471. The next prime is 27965477. The reversal of 27965475 is 57456972.

It is not a de Polignac number, because 27965475 - 2² = 27965471 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27965475.

It is not an unprimeable number, because it can be changed into a prime (27965471) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61921 + ... + 62370.

Almost surely, 2^27965475 is an apocalyptic number.

27965475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27965475 is a deficient number, since it is larger than the sum of its proper divisors (22124201).

27965475 is a wasteful number, since it uses less digits than its factorization.

27965475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124307 (or 124299 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 27965475 is about 5288.2393100161. The cubic root of 27965475 is about 303.5340384333.

The spelling of 27965475 in words is "twenty-seven million, nine hundred sixty-five thousand, four hundred seventy-five".