670950 has 96 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 151200.

The previous prime is 670931. The next prime is 670951. The reversal of 670950 is 59076.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670951) by changing a digit.

670950 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9415 + ... + 9485.

It is an arithmetic number, because the mean of its divisors is an integer number (22320).

2⁶⁷⁰⁹⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071360).

670950 is an abundant number, since it is smaller than the sum of its proper divisors (1471770).

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

670950 is a wasteful number, since it uses less digits than its factorization.

670950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 670950 is about 819.1153764886. The cubic root of 670950 is about 87.5447390257.

The spelling of 670950 in words is "six hundred seventy thousand, nine hundred fifty".