27742307 has 4 divisors (see below), whose sum is σ = 27763176. Its totient is φ = 27721440.

The previous prime is 27742259. The next prime is 27742343. The reversal of 27742307 is 70324772.

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 27742307 - 2¹⁶ = 27676771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27742367) 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, 8294 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (6940794).

Almost surely, 2^27742307 is an apocalyptic number.

27742307 is a deficient number, since it is larger than the sum of its proper divisors (20869).

27742307 is a wasteful number, since it uses less digits than its factorization.

27742307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20868.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 27742307 is about 5267.0966385666. The cubic root of 27742307 is about 302.7244678681.

The spelling of 27742307 in words is "twenty-seven million, seven hundred forty-two thousand, three hundred seven".