224994397 has 2 divisors, whose sum is σ = 224994398. Its totient is φ = 224994396.

The previous prime is 224994389. The next prime is 224994401. The reversal of 224994397 is 793499422.

224994397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212751396 + 12243001 = 14586^2 + 3499^2 .

It is a cyclic number.

It is not a de Polignac number, because 224994397 - 2³ = 224994389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224994397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224994377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112497198 + 112497199.

It is an arithmetic number, because the mean of its divisors is an integer number (112497199).

Almost surely, 2^224994397 is an apocalyptic number.

It is an amenable number.

224994397 is a deficient number, since it is larger than the sum of its proper divisors (1).

224994397 is an equidigital number, since it uses as much as digits as its factorization.

224994397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 224994397 is about 14999.8132321706. The cubic root of 224994397 is about 608.2151508372.

It can be divided in two parts, 22499 and 4397, that added together give a square (26896 = 164²).

The spelling of 224994397 in words is "two hundred twenty-four million, nine hundred ninety-four thousand, three hundred ninety-seven".