670422 has 16 divisors (see below), whose sum is σ = 1387440. Its totient is φ = 215712.

The previous prime is 670409. The next prime is 670447. The reversal of 670422 is 224076.

It is a happy number.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 1753 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (86715).

2⁶⁷⁰⁴²² is an apocalyptic number.

670422 is an abundant number, since it is smaller than the sum of its proper divisors (717018).

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

670422 is a wasteful number, since it uses less digits than its factorization.

670422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 670422 is about 818.7930141373. The cubic root of 670422 is about 87.5217687335.

Adding to 670422 its reverse (224076), we get a palindrome (894498).

The spelling of 670422 in words is "six hundred seventy thousand, four hundred twenty-two".