229667691 has 32 divisors (see below), whose sum is σ = 344332800. Its totient is φ = 134956800.

The previous prime is 229667681. The next prime is 229667693. The reversal of 229667691 is 196766922.

It is not a de Polignac number, because 229667691 - 2¹¹ = 229665643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229667691.

It is not an unprimeable number, because it can be changed into a prime (229667693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268821 + ... + 269673.

It is an arithmetic number, because the mean of its divisors is an integer number (10760400).

Almost surely, 2^229667691 is an apocalyptic number.

229667691 is a deficient number, since it is larger than the sum of its proper divisors (114665109).

229667691 is a wasteful number, since it uses less digits than its factorization.

229667691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107.

The product of its digits is 489888, while the sum is 48.

The square root of 229667691 is about 15154.7910246232. The cubic root of 229667691 is about 612.3973481170.

The spelling of 229667691 in words is "two hundred twenty-nine million, six hundred sixty-seven thousand, six hundred ninety-one".