670112109 has 16 divisors (see below), whose sum is σ = 1005018240. Its totient is φ = 446739948.

The previous prime is 670112063. The next prime is 670112117. The reversal of 670112109 is 901211076.

It is not a de Polignac number, because 670112109 - 2⁹ = 670111597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670111109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151017 + ... + 155390.

It is an arithmetic number, because the mean of its divisors is an integer number (62813640).

Almost surely, 2^670112109 is an apocalyptic number.

It is an amenable number.

670112109 is a deficient number, since it is larger than the sum of its proper divisors (334906131).

670112109 is an frugal number, since it uses more digits than its factorization.

670112109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306428 (or 306410 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 670112109 is about 25886.5236947722. The cubic root of 670112109 is about 875.0828151276.

The spelling of 670112109 in words is "six hundred seventy million, one hundred twelve thousand, one hundred nine".