670344746 has 4 divisors (see below), whose sum is σ = 1005517122. Its totient is φ = 335172372.

The previous prime is 670344739. The next prime is 670344749. The reversal of 670344746 is 647443076.

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

It can be written as a sum of positive squares in only one way, i.e., 631768225 + 38576521 = 25135^2 + 6211^2 .

It is not an unprimeable number, because it can be changed into a prime (670344749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167586185 + ... + 167586188.

Almost surely, 2^670344746 is an apocalyptic number.

670344746 is a deficient number, since it is larger than the sum of its proper divisors (335172376).

670344746 is a wasteful number, since it uses less digits than its factorization.

670344746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335172375.

The product of its (nonzero) digits is 338688, while the sum is 41.

The square root of 670344746 is about 25891.0167046410. The cubic root of 670344746 is about 875.1840683780.

The spelling of 670344746 in words is "six hundred seventy million, three hundred forty-four thousand, seven hundred forty-six".