670630279 has 24 divisors (see below), whose sum is σ = 767009936. Its totient is φ = 585446400.

The previous prime is 670630243. The next prime is 670630369. The reversal of 670630279 is 972036076.

670630279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670630279 - 2⁷ = 670630151 is a prime.

It is a super-2 number, since 2×670630279² = 899489942223235682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670630579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316327 + ... + 318439.

Almost surely, 2^670630279 is an apocalyptic number.

670630279 is a deficient number, since it is larger than the sum of its proper divisors (96379657).

670630279 is a wasteful number, since it uses less digits than its factorization.

670630279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 670630279 is about 25896.5302502092. The cubic root of 670630279 is about 875.3083121405.

The spelling of 670630279 in words is "six hundred seventy million, six hundred thirty thousand, two hundred seventy-nine".