616227644 has 24 divisors (see below), whose sum is σ = 1093705200. Its totient is φ = 303771776.

The previous prime is 616227643. The next prime is 616227649. The reversal of 616227644 is 446722616.

It is a junction number, because it is equal to n+sod(n) for n = 616227598 and 616227607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616227643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77879 + ... + 85425.

It is an arithmetic number, because the mean of its divisors is an integer number (45571050).

Almost surely, 2^616227644 is an apocalyptic number.

It is an amenable number.

616227644 is a deficient number, since it is larger than the sum of its proper divisors (477477556).

616227644 is a wasteful number, since it uses less digits than its factorization.

616227644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837 (or 7835 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 616227644 is about 24823.9328874375. The cubic root of 616227644 is about 850.9689729519.

The spelling of 616227644 in words is "six hundred sixteen million, two hundred twenty-seven thousand, six hundred forty-four".