229738387 has 2 divisors, whose sum is σ = 229738388. Its totient is φ = 229738386.

The previous prime is 229738381. The next prime is 229738441. The reversal of 229738387 is 783837922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229738387 - 2⁷ = 229738259 is a prime.

It is a super-2 number, since 2×229738387² = 105559452922723538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 229738387.

It is not a weakly prime, because it can be changed into another prime (229738381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114869193 + 114869194.

It is an arithmetic number, because the mean of its divisors is an integer number (114869194).

Almost surely, 2^229738387 is an apocalyptic number.

229738387 is a deficient number, since it is larger than the sum of its proper divisors (1).

229738387 is an equidigital number, since it uses as much as digits as its factorization.

229738387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The square root of 229738387 is about 15157.1233088604. The cubic root of 229738387 is about 612.4601774470.

The spelling of 229738387 in words is "two hundred twenty-nine million, seven hundred thirty-eight thousand, three hundred eighty-seven".