27969307 has 4 divisors (see below), whose sum is σ = 28619800. Its totient is φ = 27318816.

The previous prime is 27969283. The next prime is 27969323. The reversal of 27969307 is 70396972.

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

It is a cyclic number.

It is not a de Polignac number, because 27969307 - 2²³ = 19580699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 650449 = 27969307 / (2 + 7 + 9 + 6 + 9 + 3 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27969377) 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, 325182 + ... + 325267.

It is an arithmetic number, because the mean of its divisors is an integer number (7154950).

Almost surely, 2^27969307 is an apocalyptic number.

27969307 is a deficient number, since it is larger than the sum of its proper divisors (650493).

27969307 is an equidigital number, since it uses as much as digits as its factorization.

27969307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650492.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 27969307 is about 5288.6016110121. The cubic root of 27969307 is about 303.5479018287.

The spelling of 27969307 in words is "twenty-seven million, nine hundred sixty-nine thousand, three hundred seven".