616919823 has 24 divisors (see below), whose sum is σ = 1001381472. Its totient is φ = 363135168.

The previous prime is 616919803. The next prime is 616919843. The reversal of 616919823 is 328919616.

It is a happy number.

616919823 is a `hidden beast` number, since 616 + 9 + 1 + 9 + 8 + 23 = 666.

616919823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (616919803) and next prime (616919843).

It is not a de Polignac number, because 616919823 - 2¹² = 616915727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616919803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111936 + ... + 117317.

It is an arithmetic number, because the mean of its divisors is an integer number (41724228).

Almost surely, 2^616919823 is an apocalyptic number.

616919823 is a deficient number, since it is larger than the sum of its proper divisors (384461649).

616919823 is a wasteful number, since it uses less digits than its factorization.

616919823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229295 (or 229292 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 616919823 is about 24837.8707420745. The cubic root of 616919823 is about 851.2874712946.

The spelling of 616919823 in words is "six hundred sixteen million, nine hundred nineteen thousand, eight hundred twenty-three".