667070743 has 4 divisors (see below), whose sum is σ = 685099720. Its totient is φ = 649041768.

The previous prime is 667070713. The next prime is 667070759. The reversal of 667070743 is 347070766.

667070743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667070743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667070696 and 667070705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667070713) 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, 9014433 + ... + 9014506.

It is an arithmetic number, because the mean of its divisors is an integer number (171274930).

Almost surely, 2^667070743 is an apocalyptic number.

667070743 is a deficient number, since it is larger than the sum of its proper divisors (18028977).

667070743 is a wasteful number, since it uses less digits than its factorization.

667070743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18028976.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 667070743 is about 25827.7126939263. The cubic root of 667070743 is about 873.7569256848.

The spelling of 667070743 in words is "six hundred sixty-seven million, seventy thousand, seven hundred forty-three".