27976069 has 4 divisors (see below), whose sum is σ = 30519360. Its totient is φ = 25432780.

The previous prime is 27976057. The next prime is 27976093. The reversal of 27976069 is 96067972.

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 27976069 - 2¹¹ = 27974021 is a prime.

It is a super-2 number, since 2×27976069² = 1565320873385522, 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 (27976469) 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, 1271629 + ... + 1271650.

It is an arithmetic number, because the mean of its divisors is an integer number (7629840).

Almost surely, 2^27976069 is an apocalyptic number.

It is an amenable number.

27976069 is a deficient number, since it is larger than the sum of its proper divisors (2543291).

27976069 is a wasteful number, since it uses less digits than its factorization.

27976069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543290.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 27976069 is about 5289.2408718076. The cubic root of 27976069 is about 303.5723622789.

The spelling of 27976069 in words is "twenty-seven million, nine hundred seventy-six thousand, sixty-nine".