224613997 has 4 divisors (see below), whose sum is σ = 224644156. Its totient is φ = 224583840.

The previous prime is 224613973. The next prime is 224614007. The reversal of 224613997 is 799316422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 166564836 + 58049161 = 12906^2 + 7619^2 .

It is a cyclic number.

It is not a de Polignac number, because 224613997 - 2²³ = 216225389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224613937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5047 + ... + 21787.

It is an arithmetic number, because the mean of its divisors is an integer number (56161039).

Almost surely, 2^224613997 is an apocalyptic number.

It is an amenable number.

224613997 is a deficient number, since it is larger than the sum of its proper divisors (30159).

224613997 is a wasteful number, since it uses less digits than its factorization.

224613997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30158.

The product of its digits is 163296, while the sum is 43.

The square root of 224613997 is about 14987.1277101385. The cubic root of 224613997 is about 607.8721859170.

The spelling of 224613997 in words is "two hundred twenty-four million, six hundred thirteen thousand, nine hundred ninety-seven".