27028977 has 4 divisors (see below), whose sum is σ = 36038640. Its totient is φ = 18019316.

The previous prime is 27028973. The next prime is 27028999. The reversal of 27028977 is 77982072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27028977 - 2² = 27028973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27028973) 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, 4504827 + ... + 4504832.

It is an arithmetic number, because the mean of its divisors is an integer number (9009660).

Almost surely, 2^27028977 is an apocalyptic number.

It is an amenable number.

27028977 is a deficient number, since it is larger than the sum of its proper divisors (9009663).

27028977 is an equidigital number, since it uses as much as digits as its factorization.

27028977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9009662.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 27028977 is about 5198.9399881130. The cubic root of 27028977 is about 300.1072838516.

The spelling of 27028977 in words is "twenty-seven million, twenty-eight thousand, nine hundred seventy-seven".