617422906 has 8 divisors (see below), whose sum is σ = 928933344. Its totient is φ = 307778460.

The previous prime is 617422903. The next prime is 617422913. The reversal of 617422906 is 609224716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×617422906³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (617422903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465670 + ... + 466993.

It is an arithmetic number, because the mean of its divisors is an integer number (116116668).

Almost surely, 2^617422906 is an apocalyptic number.

617422906 is a deficient number, since it is larger than the sum of its proper divisors (311510438).

617422906 is a wasteful number, since it uses less digits than its factorization.

617422906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932996.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 617422906 is about 24847.9960157756. The cubic root of 617422906 is about 851.5188097806.

The spelling of 617422906 in words is "six hundred seventeen million, four hundred twenty-two thousand, nine hundred six".