670491103 has 4 divisors (see below), whose sum is σ = 675314920. Its totient is φ = 665667288.

The previous prime is 670491089. The next prime is 670491109. The reversal of 670491103 is 301194076.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670491103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670491109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2411700 + ... + 2411977.

It is an arithmetic number, because the mean of its divisors is an integer number (168828730).

Almost surely, 2^670491103 is an apocalyptic number.

670491103 is a deficient number, since it is larger than the sum of its proper divisors (4823817).

670491103 is a wasteful number, since it uses less digits than its factorization.

670491103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823816.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 670491103 is about 25893.8429554209. The cubic root of 670491103 is about 875.2477569972.

The spelling of 670491103 in words is "six hundred seventy million, four hundred ninety-one thousand, one hundred three".