27922487 has 4 divisors (see below), whose sum is σ = 28042560. Its totient is φ = 27802416.

The previous prime is 27922463. The next prime is 27922507. The reversal of 27922487 is 78422972.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27922487 - 2⁶ = 27922423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27922387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59687 + ... + 60152.

It is an arithmetic number, because the mean of its divisors is an integer number (7010640).

Almost surely, 2^27922487 is an apocalyptic number.

27922487 is a deficient number, since it is larger than the sum of its proper divisors (120073).

27922487 is a wasteful number, since it uses less digits than its factorization.

27922487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120072.

The product of its digits is 112896, while the sum is 41.

The square root of 27922487 is about 5284.1732560543. The cubic root of 27922487 is about 303.3784297428.

The spelling of 27922487 in words is "twenty-seven million, nine hundred twenty-two thousand, four hundred eighty-seven".