670617234 has 72 divisors (see below), whose sum is σ = 1744823808. Its totient is φ = 185416560.

The previous prime is 670617229. The next prime is 670617251. The reversal of 670617234 is 432716076.

670617234 is a `hidden beast` number, since 6 + 7 + 0 + 617 + 2 + 34 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 15079 + ... + 39605.

It is an arithmetic number, because the mean of its divisors is an integer number (24233664).

Almost surely, 2^670617234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670617234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872411904).

670617234 is an abundant number, since it is smaller than the sum of its proper divisors (1074206574).

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

670617234 is a wasteful number, since it uses less digits than its factorization.

670617234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24580 (or 24570 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 670617234 is about 25896.2783812655. The cubic root of 670617234 is about 875.3026366482.

The spelling of 670617234 in words is "six hundred seventy million, six hundred seventeen thousand, two hundred thirty-four".