27901193 has 4 divisors (see below), whose sum is σ = 28041600. Its totient is φ = 27760788.

The previous prime is 27901189. The next prime is 27901207. The reversal of 27901193 is 39110972.

It is a happy number.

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 27901193 - 2² = 27901189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27901123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69905 + ... + 70302.

It is an arithmetic number, because the mean of its divisors is an integer number (7010400).

Almost surely, 2^27901193 is an apocalyptic number.

It is an amenable number.

27901193 is a deficient number, since it is larger than the sum of its proper divisors (140407).

27901193 is a wasteful number, since it uses less digits than its factorization.

27901193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140406.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 27901193 is about 5282.1579870352. The cubic root of 27901193 is about 303.3012902056.

The spelling of 27901193 in words is "twenty-seven million, nine hundred one thousand, one hundred ninety-three".