27938069 has 4 divisors (see below), whose sum is σ = 28532544. Its totient is φ = 27343596.

The previous prime is 27938059. The next prime is 27938111. The reversal of 27938069 is 96083972.

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 27938069 - 2⁸ = 27937813 is a prime.

It is a super-2 number, since 2×27938069² = 1561071398897522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27938039) 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, 297167 + ... + 297260.

It is an arithmetic number, because the mean of its divisors is an integer number (7133136).

Almost surely, 2^27938069 is an apocalyptic number.

It is an amenable number.

27938069 is a deficient number, since it is larger than the sum of its proper divisors (594475).

27938069 is an equidigital number, since it uses as much as digits as its factorization.

27938069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594474.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 27938069 is about 5285.6474532454. The cubic root of 27938069 is about 303.4348521718.

The spelling of 27938069 in words is "twenty-seven million, nine hundred thirty-eight thousand, sixty-nine".