616488919 has 2 divisors, whose sum is σ = 616488920. Its totient is φ = 616488918.

The previous prime is 616488911. The next prime is 616488937. The reversal of 616488919 is 919884616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616488919 - 2³ = 616488911 is a prime.

It is a super-2 number, since 2×616488919² = 760117174499577122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616488911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308244459 + 308244460.

It is an arithmetic number, because the mean of its divisors is an integer number (308244460).

Almost surely, 2^616488919 is an apocalyptic number.

616488919 is a deficient number, since it is larger than the sum of its proper divisors (1).

616488919 is an equidigital number, since it uses as much as digits as its factorization.

616488919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 52.

The square root of 616488919 is about 24829.1948923037. The cubic root of 616488919 is about 851.0892236986.

The spelling of 616488919 in words is "six hundred sixteen million, four hundred eighty-eight thousand, nine hundred nineteen".