616223643 has 8 divisors (see below), whose sum is σ = 939007488. Its totient is φ = 352127784.

The previous prime is 616223609. The next prime is 616223653. The reversal of 616223643 is 346322616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616223643 - 2¹² = 616219547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616223653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14671971 + ... + 14672012.

It is an arithmetic number, because the mean of its divisors is an integer number (117375936).

Almost surely, 2^616223643 is an apocalyptic number.

616223643 is a deficient number, since it is larger than the sum of its proper divisors (322783845).

616223643 is a wasteful number, since it uses less digits than its factorization.

616223643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29343993.

The product of its digits is 31104, while the sum is 33.

The square root of 616223643 is about 24823.8522997540. The cubic root of 616223643 is about 850.9671312439.

The spelling of 616223643 in words is "six hundred sixteen million, two hundred twenty-three thousand, six hundred forty-three".