617670 has 24 divisors (see below), whose sum is σ = 1606176. Its totient is φ = 164688.

The previous prime is 617657. The next prime is 617677. The reversal of 617670 is 76716.

617670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3342 + ... + 3521.

It is an arithmetic number, because the mean of its divisors is an integer number (66924).

2⁶¹⁷⁶⁷⁰ is an apocalyptic number.

617670 is an abundant number, since it is smaller than the sum of its proper divisors (988506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

617670 is a wasteful number, since it uses less digits than its factorization.

617670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876 (or 6873 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 617670 is about 785.9198432410. The cubic root of 617670 is about 85.1632387862.

The spelling of 617670 in words is "six hundred seventeen thousand, six hundred seventy".