670285667 has 6 divisors (see below), whose sum is σ = 707420988. Its totient is φ = 635007132.

The previous prime is 670285663. The next prime is 670285699. The reversal of 670285667 is 766582076.

It is not a de Polignac number, because 670285667 - 2² = 670285663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670285663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 928013 + ... + 928734.

It is an arithmetic number, because the mean of its divisors is an integer number (117903498).

Almost surely, 2^670285667 is an apocalyptic number.

670285667 is a deficient number, since it is larger than the sum of its proper divisors (37135321).

670285667 is a wasteful number, since it uses less digits than its factorization.

670285667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856785 (or 1856766 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 670285667 is about 25889.8757625447. The cubic root of 670285667 is about 875.1583569716.

The spelling of 670285667 in words is "six hundred seventy million, two hundred eighty-five thousand, six hundred sixty-seven".