229977 has 24 divisors (see below), whose sum is σ = 381888. Its totient is φ = 132000.

The previous prime is 229963. The next prime is 229979. The reversal of 229977 is 779922.

It is not a de Polignac number, because 229977 - 2⁴ = 229961 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (229979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2227 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (15912).

2²²⁹⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

229977 is a deficient number, since it is larger than the sum of its proper divisors (151911).

229977 is a wasteful number, since it uses less digits than its factorization.

229977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 138 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 229977 is about 479.5591725741. The cubic root of 229977 is about 61.2672143756.

Subtracting 229977 from its reverse (779922), we obtain a palindrome (549945).

It can be divided in two parts, 22 and 9977, that added together give a palindrome (9999).

The spelling of 229977 in words is "two hundred twenty-nine thousand, nine hundred seventy-seven".