617608867 has 2 divisors, whose sum is σ = 617608868. Its totient is φ = 617608866.

The previous prime is 617608837. The next prime is 617608883. The reversal of 617608867 is 768806716.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617608867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 617608867.

It is not a weakly prime, because it can be changed into another prime (617608837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308804433 + 308804434.

It is an arithmetic number, because the mean of its divisors is an integer number (308804434).

Almost surely, 2^617608867 is an apocalyptic number.

617608867 is a deficient number, since it is larger than the sum of its proper divisors (1).

617608867 is an equidigital number, since it uses as much as digits as its factorization.

617608867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 617608867 is about 24851.7377058426. The cubic root of 617608867 is about 851.6042905711.

The spelling of 617608867 in words is "six hundred seventeen million, six hundred eight thousand, eight hundred sixty-seven".