670985343 has 64 divisors (see below), whose sum is σ = 1174656000. Its totient is φ = 370541952.

The previous prime is 670985333. The next prime is 670985407. The reversal of 670985343 is 343589076.

It is not a de Polignac number, because 670985343 - 2⁴ = 670985327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670985333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1601188 + ... + 1601606.

It is an arithmetic number, because the mean of its divisors is an integer number (18354000).

Almost surely, 2^670985343 is an apocalyptic number.

670985343 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

670985343 is a deficient number, since it is larger than the sum of its proper divisors (503670657).

670985343 is a wasteful number, since it uses less digits than its factorization.

670985343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 670985343 is about 25903.3847788277. The cubic root of 670985343 is about 875.4627616920.

The spelling of 670985343 in words is "six hundred seventy million, nine hundred eighty-five thousand, three hundred forty-three".