27047973 has 4 divisors (see below), whose sum is σ = 36063968. Its totient is φ = 18031980.

The previous prime is 27047971. The next prime is 27048017. The reversal of 27047973 is 37974072.

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 not a de Polignac number, because 27047973 - 2¹ = 27047971 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27047971) 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, 4507993 + ... + 4507998.

It is an arithmetic number, because the mean of its divisors is an integer number (9015992).

Almost surely, 2^27047973 is an apocalyptic number.

It is an amenable number.

27047973 is a deficient number, since it is larger than the sum of its proper divisors (9015995).

27047973 is an equidigital number, since it uses as much as digits as its factorization.

27047973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015994.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 27047973 is about 5200.7665781113. The cubic root of 27047973 is about 300.1775726502.

The spelling of 27047973 in words is "twenty-seven million, forty-seven thousand, nine hundred seventy-three".