670650443 has 4 divisors (see below), whose sum is σ = 671144568. Its totient is φ = 670156320.

The previous prime is 670650437. The next prime is 670650481. The reversal of 670650443 is 344056076.

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 670650443 - 2¹⁴ = 670634059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670653443) 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, 245021 + ... + 247742.

It is an arithmetic number, because the mean of its divisors is an integer number (167786142).

Almost surely, 2^670650443 is an apocalyptic number.

670650443 is a deficient number, since it is larger than the sum of its proper divisors (494125).

670650443 is a wasteful number, since it uses less digits than its factorization.

670650443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494124.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 670650443 is about 25896.9195658480. The cubic root of 670650443 is about 875.3170847536.

The spelling of 670650443 in words is "six hundred seventy million, six hundred fifty thousand, four hundred forty-three".