617963873 has 4 divisors (see below), whose sum is σ = 618564288. Its totient is φ = 617363460.

The previous prime is 617963869. The next prime is 617963881. The reversal of 617963873 is 378369716.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 617963873 - 2² = 617963869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617963173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298661 + ... + 300722.

It is an arithmetic number, because the mean of its divisors is an integer number (154641072).

Almost surely, 2^617963873 is an apocalyptic number.

It is an amenable number.

617963873 is a deficient number, since it is larger than the sum of its proper divisors (600415).

617963873 is a wasteful number, since it uses less digits than its factorization.

617963873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600414.

The product of its digits is 1143072, while the sum is 50.

The square root of 617963873 is about 24858.8791581600. The cubic root of 617963873 is about 851.7674287326.

The spelling of 617963873 in words is "six hundred seventeen million, nine hundred sixty-three thousand, eight hundred seventy-three".