27121853 has 8 divisors (see below), whose sum is σ = 30874176. Its totient is φ = 23584000.

The previous prime is 27121811. The next prime is 27121889. The reversal of 27121853 is 35812172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27121853 - 2⁸ = 27121597 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 (27121153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53348 + ... + 53853.

It is an arithmetic number, because the mean of its divisors is an integer number (3859272).

Almost surely, 2^27121853 is an apocalyptic number.

27121853 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

27121853 is a deficient number, since it is larger than the sum of its proper divisors (3752323).

27121853 is a wasteful number, since it uses less digits than its factorization.

27121853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107235.

The product of its digits is 3360, while the sum is 29.

The square root of 27121853 is about 5207.8645335684. The cubic root of 27121853 is about 300.4506301766.

The spelling of 27121853 in words is "twenty-seven million, one hundred twenty-one thousand, eight hundred fifty-three".