227789421 has 16 divisors (see below), whose sum is σ = 306244224. Its totient is φ = 150603264.

The previous prime is 227789417. The next prime is 227789431. The reversal of 227789421 is 124987722.

It is not a de Polignac number, because 227789421 - 2² = 227789417 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227789431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235080 + ... + 236046.

It is an arithmetic number, because the mean of its divisors is an integer number (19140264).

Almost surely, 2^227789421 is an apocalyptic number.

It is an amenable number.

227789421 is a deficient number, since it is larger than the sum of its proper divisors (78454803).

227789421 is a wasteful number, since it uses less digits than its factorization.

227789421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its digits is 112896, while the sum is 42.

The square root of 227789421 is about 15092.6942922727. The cubic root of 227789421 is about 610.7233388253.

The spelling of 227789421 in words is "two hundred twenty-seven million, seven hundred eighty-nine thousand, four hundred twenty-one".