616630223 has 4 divisors (see below), whose sum is σ = 672687528. Its totient is φ = 560572920.

The previous prime is 616630213. The next prime is 616630229. The reversal of 616630223 is 322036616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 616630223 - 2²⁰ = 615581647 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 (616630229) 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, 28028636 + ... + 28028657.

It is an arithmetic number, because the mean of its divisors is an integer number (168171882).

Almost surely, 2^616630223 is an apocalyptic number.

616630223 is a deficient number, since it is larger than the sum of its proper divisors (56057305).

616630223 is a wasteful number, since it uses less digits than its factorization.

616630223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56057304.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 616630223 is about 24832.0402504506. The cubic root of 616630223 is about 851.1542441289.

Adding to 616630223 its reverse (322036616), we get a palindrome (938666839).

The spelling of 616630223 in words is "six hundred sixteen million, six hundred thirty thousand, two hundred twenty-three".