27622039 has 4 divisors (see below), whose sum is σ = 28264456. Its totient is φ = 26979624.

The previous prime is 27622013. The next prime is 27622043. The reversal of 27622039 is 93022672.

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 27622039 - 2²¹ = 25524887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27622039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27622079) 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, 321144 + ... + 321229.

It is an arithmetic number, because the mean of its divisors is an integer number (7066114).

Almost surely, 2^27622039 is an apocalyptic number.

27622039 is a deficient number, since it is larger than the sum of its proper divisors (642417).

27622039 is an equidigital number, since it uses as much as digits as its factorization.

27622039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642416.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 27622039 is about 5255.6673220439. The cubic root of 27622039 is about 302.2863787879.

The spelling of 27622039 in words is "twenty-seven million, six hundred twenty-two thousand, thirty-nine".