617872106 has 16 divisors (see below), whose sum is σ = 981860616. Its totient is φ = 290605056.

The previous prime is 617872093. The next prime is 617872127. The reversal of 617872106 is 601278716.

It can be written as a sum of positive squares in 4 ways, for example, as 614296225 + 3575881 = 24785^2 + 1891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 617872106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79130 + ... + 86586.

Almost surely, 2^617872106 is an apocalyptic number.

617872106 is a deficient number, since it is larger than the sum of its proper divisors (363988510).

617872106 is a wasteful number, since it uses less digits than its factorization.

617872106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9913.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 617872106 is about 24857.0333306290. The cubic root of 617872106 is about 851.7252644495.

The spelling of 617872106 in words is "six hundred seventeen million, eight hundred seventy-two thousand, one hundred six".