670834 has 4 divisors (see below), whose sum is σ = 1006254. Its totient is φ = 335416.

The previous prime is 670823. The next prime is 670849. The reversal of 670834 is 438076.

670834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 632025 + 38809 = 795^2 + 197^2 .

It is an Ulam number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167707 + ... + 167710.

2⁶⁷⁰⁸³⁴ is an apocalyptic number.

670834 is a deficient number, since it is larger than the sum of its proper divisors (335420).

670834 is a wasteful number, since it uses less digits than its factorization.

670834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335419.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 670834 is about 819.0445653321. The cubic root of 670834 is about 87.5396935553.

The spelling of 670834 in words is "six hundred seventy thousand, eight hundred thirty-four".