670743382 has 4 divisors (see below), whose sum is σ = 1006115076. Its totient is φ = 335371690.

The previous prime is 670743379. The next prime is 670743383. The reversal of 670743382 is 283347076.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670743383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167685844 + ... + 167685847.

It is an arithmetic number, because the mean of its divisors is an integer number (251528769).

Almost surely, 2^670743382 is an apocalyptic number.

670743382 is a deficient number, since it is larger than the sum of its proper divisors (335371694).

670743382 is a wasteful number, since it uses less digits than its factorization.

670743382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335371693.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 670743382 is about 25898.7139062927. The cubic root of 670743382 is about 875.3575168136.

The spelling of 670743382 in words is "six hundred seventy million, seven hundred forty-three thousand, three hundred eighty-two".