227920197 has 8 divisors (see below), whose sum is σ = 305829856. Its totient is φ = 150978672.

The previous prime is 227920159. The next prime is 227920211. The reversal of 227920197 is 791029722.

227920197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 227920197 - 2¹⁰ = 227919173 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 (227920397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241483 + ... + 242424.

It is an arithmetic number, because the mean of its divisors is an integer number (38228732).

Almost surely, 2^227920197 is an apocalyptic number.

It is an amenable number.

227920197 is a deficient number, since it is larger than the sum of its proper divisors (77909659).

227920197 is a wasteful number, since it uses less digits than its factorization.

227920197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484067.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 227920197 is about 15097.0260978777. The cubic root of 227920197 is about 610.8401904267.

The spelling of 227920197 in words is "two hundred twenty-seven million, nine hundred twenty thousand, one hundred ninety-seven".