675397633 has 4 divisors (see below), whose sum is σ = 691870788. Its totient is φ = 658924480.

The previous prime is 675397621. The next prime is 675397637. The reversal of 675397633 is 336793576.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71368704 + 604028929 = 8448^2 + 24577^2 .

It is a cyclic number.

It is not a de Polignac number, because 675397633 - 2²⁵ = 641843201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675397637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8236516 + ... + 8236597.

It is an arithmetic number, because the mean of its divisors is an integer number (172967697).

Almost surely, 2^675397633 is an apocalyptic number.

It is an amenable number.

675397633 is a deficient number, since it is larger than the sum of its proper divisors (16473155).

675397633 is a wasteful number, since it uses less digits than its factorization.

675397633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16473154.

The product of its digits is 2143260, while the sum is 49.

The square root of 675397633 is about 25988.4134375302. The cubic root of 675397633 is about 877.3775374213.

The spelling of 675397633 in words is "six hundred seventy-five million, three hundred ninety-seven thousand, six hundred thirty-three".