675662643 has 6 divisors (see below), whose sum is σ = 975957164. Its totient is φ = 450441756.

The previous prime is 675662627. The next prime is 675662681. The reversal of 675662643 is 346266576.

675662643 is a `hidden beast` number, since 67 + 566 + 26 + 4 + 3 = 666.

It is not a de Polignac number, because 675662643 - 2⁴ = 675662627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675662623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37536805 + ... + 37536822.

Almost surely, 2^675662643 is an apocalyptic number.

675662643 is a deficient number, since it is larger than the sum of its proper divisors (300294521).

675662643 is a wasteful number, since it uses less digits than its factorization.

675662643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75073633 (or 75073630 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 675662643 is about 25993.5115557710. The cubic root of 675662643 is about 877.4922764557.

The spelling of 675662643 in words is "six hundred seventy-five million, six hundred sixty-two thousand, six hundred forty-three".