670003678 has 4 divisors (see below), whose sum is σ = 1005005520. Its totient is φ = 335001838.

The previous prime is 670003667. The next prime is 670003699. The reversal of 670003678 is 876300076.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167500918 + ... + 167500921.

It is an arithmetic number, because the mean of its divisors is an integer number (251251380).

Almost surely, 2^670003678 is an apocalyptic number.

670003678 is a deficient number, since it is larger than the sum of its proper divisors (335001842).

670003678 is a wasteful number, since it uses less digits than its factorization.

670003678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335001841.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 670003678 is about 25884.4292577603. The cubic root of 670003678 is about 875.0356134620.

The spelling of 670003678 in words is "six hundred seventy million, three thousand, six hundred seventy-eight".