670218086 has 4 divisors (see below), whose sum is σ = 1005327132. Its totient is φ = 335109042.

The previous prime is 670218083. The next prime is 670218097. The reversal of 670218086 is 680812076.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670218083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167554520 + ... + 167554523.

It is an arithmetic number, because the mean of its divisors is an integer number (251331783).

Almost surely, 2^670218086 is an apocalyptic number.

670218086 is a deficient number, since it is larger than the sum of its proper divisors (335109046).

670218086 is a wasteful number, since it uses less digits than its factorization.

670218086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335109045.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 670218086 is about 25888.5705669510. The cubic root of 670218086 is about 875.1289436096.

The spelling of 670218086 in words is "six hundred seventy million, two hundred eighteen thousand, eighty-six".