616321875 has 72 divisors (see below), whose sum is σ = 1115084880. Its totient is φ = 302640000.

The previous prime is 616321873. The next prime is 616321877. The reversal of 616321875 is 578123616.

616321875 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 (616321873) and next prime (616321877).

It is not a de Polignac number, because 616321875 - 2¹ = 616321873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (616321873) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1584181 + ... + 1584569.

It is an arithmetic number, because the mean of its divisors is an integer number (15487290).

Almost surely, 2^616321875 is an apocalyptic number.

616321875 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

616321875 is a deficient number, since it is larger than the sum of its proper divisors (498763005).

616321875 is an equidigital number, since it uses as much as digits as its factorization.

616321875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 410 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 616321875 is about 24825.8308018080. The cubic root of 616321875 is about 851.0123463011.

The spelling of 616321875 in words is "six hundred sixteen million, three hundred twenty-one thousand, eight hundred seventy-five".