670698 has 24 divisors (see below), whose sum is σ = 1661088. Its totient is φ = 191592.

The previous prime is 670693. The next prime is 670711. The reversal of 670698 is 896076.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670698.

It is not an unprimeable number, because it can be changed into a prime (670693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2536 + ... + 2787.

It is an arithmetic number, because the mean of its divisors is an integer number (69212).

2⁶⁷⁰⁶⁹⁸ is an apocalyptic number.

670698 is an abundant number, since it is smaller than the sum of its proper divisors (990390).

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

670698 is a wasteful number, since it uses less digits than its factorization.

670698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338 (or 5335 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 670698 is about 818.9615375584. The cubic root of 670698 is about 87.5337774355.

The spelling of 670698 in words is "six hundred seventy thousand, six hundred ninety-eight".