670498 has 4 divisors (see below), whose sum is σ = 1005750. Its totient is φ = 335248.

The previous prime is 670493. The next prime is 670507. The reversal of 670498 is 894076.

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., 413449 + 257049 = 643^2 + 507^2 .

It is not an unprimeable number, because it can be changed into a prime (670493) by changing a digit.

670498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167623 + ... + 167626.

2⁶⁷⁰⁴⁹⁸ is an apocalyptic number.

670498 is a deficient number, since it is larger than the sum of its proper divisors (335252).

670498 is a wasteful number, since it uses less digits than its factorization.

670498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335251.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 670498 is about 818.8394225976. The cubic root of 670498 is about 87.5250758063.

The spelling of 670498 in words is "six hundred seventy thousand, four hundred ninety-eight".