27172742 has 8 divisors (see below), whose sum is σ = 40781232. Its totient is φ = 13579000.

The previous prime is 27172741. The next prime is 27172759. The reversal of 27172742 is 24727172.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 27172699 and 27172708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27172741) 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, 5492 + ... + 9192.

It is an arithmetic number, because the mean of its divisors is an integer number (5097654).

Almost surely, 2^27172742 is an apocalyptic number.

27172742 is a deficient number, since it is larger than the sum of its proper divisors (13608490).

27172742 is a wasteful number, since it uses less digits than its factorization.

27172742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374.

The product of its digits is 10976, while the sum is 32.

The square root of 27172742 is about 5212.7480276722. The cubic root of 27172742 is about 300.6384255973.

The spelling of 27172742 in words is "twenty-seven million, one hundred seventy-two thousand, seven hundred forty-two".