670353689 has 4 divisors (see below), whose sum is σ = 670555920. Its totient is φ = 670151460.

The previous prime is 670353683. The next prime is 670353701. The reversal of 670353689 is 986353076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670353689 - 2¹⁶ = 670288153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670353683) 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, 96059 + ... + 102800.

It is an arithmetic number, because the mean of its divisors is an integer number (167638980).

Almost surely, 2^670353689 is an apocalyptic number.

It is an amenable number.

670353689 is a deficient number, since it is larger than the sum of its proper divisors (202231).

670353689 is a wasteful number, since it uses less digits than its factorization.

670353689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202230.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 670353689 is about 25891.1894087545. The cubic root of 670353689 is about 875.1879602741.

The spelling of 670353689 in words is "six hundred seventy million, three hundred fifty-three thousand, six hundred eighty-nine".