670026 has 48 divisors (see below), whose sum is σ = 1625184. Its totient is φ = 183456.

The previous prime is 670001. The next prime is 670031. The reversal of 670026 is 620076.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 669984 and 670011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12616 + ... + 12668.

It is an arithmetic number, because the mean of its divisors is an integer number (33858).

2⁶⁷⁰⁰²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812592).

670026 is an abundant number, since it is smaller than the sum of its proper divisors (955158).

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

670026 is a wasteful number, since it uses less digits than its factorization.

670026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 670026 is about 818.5511590609. The cubic root of 670026 is about 87.5045330985.

The spelling of 670026 in words is "six hundred seventy thousand, twenty-six".