675647426 has 4 divisors (see below), whose sum is σ = 1013471142. Its totient is φ = 337823712.

The previous prime is 675647393. The next prime is 675647437. The reversal of 675647426 is 624746576.

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

It can be written as a sum of positive squares in only one way, i.e., 640849225 + 34798201 = 25315^2 + 5899^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168911855 + ... + 168911858.

Almost surely, 2^675647426 is an apocalyptic number.

675647426 is a deficient number, since it is larger than the sum of its proper divisors (337823716).

675647426 is a wasteful number, since it uses less digits than its factorization.

675647426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337823715.

The product of its digits is 1693440, while the sum is 47.

The square root of 675647426 is about 25993.2188464607. The cubic root of 675647426 is about 877.4856888979.

The spelling of 675647426 in words is "six hundred seventy-five million, six hundred forty-seven thousand, four hundred twenty-six".