227117973 has 4 divisors (see below), whose sum is σ = 302823968. Its totient is φ = 151411980.

The previous prime is 227117953. The next prime is 227117981. The reversal of 227117973 is 379711722.

227117973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 227117973 - 2⁸ = 227117717 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 (227117903) 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, 37852993 + ... + 37852998.

It is an arithmetic number, because the mean of its divisors is an integer number (75705992).

Almost surely, 2^227117973 is an apocalyptic number.

It is an amenable number.

227117973 is a deficient number, since it is larger than the sum of its proper divisors (75705995).

227117973 is an equidigital number, since it uses as much as digits as its factorization.

227117973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75705994.

The product of its digits is 37044, while the sum is 39.

The square root of 227117973 is about 15070.4337362931. The cubic root of 227117973 is about 610.1226780049.

The spelling of 227117973 in words is "two hundred twenty-seven million, one hundred seventeen thousand, nine hundred seventy-three".