616297667 has 4 divisors (see below), whose sum is σ = 617041920. Its totient is φ = 615553416.

The previous prime is 616297603. The next prime is 616297729. The reversal of 616297667 is 766792616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 616297667 - 2⁶ = 616297603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616297867) 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 3 ways as a sum of consecutive naturals, for example, 370883 + ... + 372540.

It is an arithmetic number, because the mean of its divisors is an integer number (154260480).

Almost surely, 2^616297667 is an apocalyptic number.

616297667 is a deficient number, since it is larger than the sum of its proper divisors (744253).

616297667 is an equidigital number, since it uses as much as digits as its factorization.

616297667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744252.

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

The square root of 616297667 is about 24825.3432403260. The cubic root of 616297667 is about 851.0012040839.

It can be divided in two parts, 61629 and 7667, that added together give a palindrome (69296).

The spelling of 616297667 in words is "six hundred sixteen million, two hundred ninety-seven thousand, six hundred sixty-seven".