227672991 has 64 divisors (see below), whose sum is σ = 437068800. Its totient is φ = 113747328.

The previous prime is 227672989. The next prime is 227672999. The reversal of 227672991 is 199276722.

227672991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 227672991 - 2¹ = 227672989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227672999) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44245 + ... + 49121.

It is an arithmetic number, because the mean of its divisors is an integer number (6829200).

Almost surely, 2^227672991 is an apocalyptic number.

227672991 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

227672991 is a deficient number, since it is larger than the sum of its proper divisors (209395809).

227672991 is a wasteful number, since it uses less digits than its factorization.

227672991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925 (or 4919 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 227672991 is about 15088.8366350756. The cubic root of 227672991 is about 610.6192680914.

The spelling of 227672991 in words is "two hundred twenty-seven million, six hundred seventy-two thousand, nine hundred ninety-one".