670784743 has 4 divisors (see below), whose sum is σ = 675681120. Its totient is φ = 665888368.

The previous prime is 670784713. The next prime is 670784749. The reversal of 670784743 is 347487076.

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

It is a cyclic number.

It is not a de Polignac number, because 670784743 - 2⁵ = 670784711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670784693 and 670784702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670784749) 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, 2447983 + ... + 2448256.

It is an arithmetic number, because the mean of its divisors is an integer number (168920280).

Almost surely, 2^670784743 is an apocalyptic number.

670784743 is a deficient number, since it is larger than the sum of its proper divisors (4896377).

670784743 is a wasteful number, since it uses less digits than its factorization.

670784743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896376.

The product of its (nonzero) digits is 790272, while the sum is 46.

The square root of 670784743 is about 25899.5124085377. The cubic root of 670784743 is about 875.3755092476.

The spelling of 670784743 in words is "six hundred seventy million, seven hundred eighty-four thousand, seven hundred forty-three".