670954 has 4 divisors (see below), whose sum is σ = 1006434. Its totient is φ = 335476.

The previous prime is 670951. The next prime is 670963. The reversal of 670954 is 459076.

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., 522729 + 148225 = 723^2 + 385^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

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 as a sum of consecutive naturals, namely, 167737 + ... + 167740.

2⁶⁷⁰⁹⁵⁴ is an apocalyptic number.

670954 is a deficient number, since it is larger than the sum of its proper divisors (335480).

670954 is a wasteful number, since it uses less digits than its factorization.

670954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335479.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 670954 is about 819.1178181434. The cubic root of 670954 is about 87.5449129970.

The spelling of 670954 in words is "six hundred seventy thousand, nine hundred fifty-four".