229369477 has 2 divisors, whose sum is σ = 229369478. Its totient is φ = 229369476.

The previous prime is 229369451. The next prime is 229369487. The reversal of 229369477 is 774963922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145298916 + 84070561 = 12054^2 + 9169^2 .

It is a cyclic number.

It is not a de Polignac number, because 229369477 - 2¹⁹ = 228845189 is a prime.

It is a super-2 number, since 2×229369477² = 105220713958507058, 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 229369477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229369487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114684738 + 114684739.

It is an arithmetic number, because the mean of its divisors is an integer number (114684739).

Almost surely, 2^229369477 is an apocalyptic number.

It is an amenable number.

229369477 is a deficient number, since it is larger than the sum of its proper divisors (1).

229369477 is an equidigital number, since it uses as much as digits as its factorization.

229369477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 229369477 is about 15144.9488939382. The cubic root of 229369477 is about 612.1321757675.

The spelling of 229369477 in words is "two hundred twenty-nine million, three hundred sixty-nine thousand, four hundred seventy-seven".