27172853 has 4 divisors (see below), whose sum is σ = 27309600. Its totient is φ = 27036108.

The previous prime is 27172829. The next prime is 27172879. The reversal of 27172853 is 35827172.

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 27172853 - 2⁸ = 27172597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27172883) 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, 68075 + ... + 68472.

It is an arithmetic number, because the mean of its divisors is an integer number (6827400).

Almost surely, 2^27172853 is an apocalyptic number.

It is an amenable number.

27172853 is a deficient number, since it is larger than the sum of its proper divisors (136747).

27172853 is a wasteful number, since it uses less digits than its factorization.

27172853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136746.

The product of its digits is 23520, while the sum is 35.

The square root of 27172853 is about 5212.7586746367. The cubic root of 27172853 is about 300.6388349636.

The spelling of 27172853 in words is "twenty-seven million, one hundred seventy-two thousand, eight hundred fifty-three".