229777775 has 12 divisors (see below), whose sum is σ = 286422144. Its totient is φ = 182856000.

The previous prime is 229777747. The next prime is 229777787. The reversal of 229777775 is 577777922.

It is not a de Polignac number, because 229777775 - 2⁶ = 229777711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19286 + ... + 28835.

It is an arithmetic number, because the mean of its divisors is an integer number (23868512).

Almost surely, 2^229777775 is an apocalyptic number.

229777775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

229777775 is a deficient number, since it is larger than the sum of its proper divisors (56644369).

229777775 is a wasteful number, since it uses less digits than its factorization.

229777775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48322 (or 48317 counting only the distinct ones).

The product of its digits is 3025260, while the sum is 53.

The square root of 229777775 is about 15158.4225762445. The cubic root of 229777775 is about 612.4951769716.

The spelling of 229777775 in words is "two hundred twenty-nine million, seven hundred seventy-seven thousand, seven hundred seventy-five".