27849019 has 16 divisors (see below), whose sum is σ = 31921920. Its totient is φ = 24060960.

The previous prime is 27849011. The next prime is 27849023. The reversal of 27849019 is 91094872.

It is not a de Polignac number, because 27849019 - 2³ = 27849011 is a prime.

It is a super-2 number, since 2×27849019² = 1551135718524722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27849011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20722 + ... + 22024.

It is an arithmetic number, because the mean of its divisors is an integer number (1995120).

Almost surely, 2^27849019 is an apocalyptic number.

27849019 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

27849019 is a deficient number, since it is larger than the sum of its proper divisors (4072901).

27849019 is a wasteful number, since it uses less digits than its factorization.

27849019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 27849019 is about 5277.2169748836. The cubic root of 27849019 is about 303.1121188986.

The spelling of 27849019 in words is "twenty-seven million, eight hundred forty-nine thousand, nineteen".