27692989 has 8 divisors (see below), whose sum is σ = 29570112. Its totient is φ = 25872000.

The previous prime is 27692971. The next prime is 27692993. The reversal of 27692989 is 98929672.

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

It is a cyclic number.

It is not a de Polignac number, because 27692989 - 2⁵ = 27692957 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27692939) 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, 13012 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (3696264).

Almost surely, 2^27692989 is an apocalyptic number.

It is an amenable number.

27692989 is a deficient number, since it is larger than the sum of its proper divisors (1877123).

27692989 is a wasteful number, since it uses less digits than its factorization.

27692989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28067.

The product of its digits is 979776, while the sum is 52.

The square root of 27692989 is about 5262.4128496347. The cubic root of 27692989 is about 302.5449752130.

The spelling of 27692989 in words is "twenty-seven million, six hundred ninety-two thousand, nine hundred eighty-nine".