675564591 has 8 divisors (see below), whose sum is σ = 970041520. Its totient is φ = 415732032.

The previous prime is 675564587. The next prime is 675564623. The reversal of 675564591 is 195465576.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 675564591 - 2² = 675564587 is a prime.

It is a super-2 number, since 2×675564591² = 912775033225994562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 675564591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675564091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8661046 + ... + 8661123.

It is an arithmetic number, because the mean of its divisors is an integer number (121255190).

Almost surely, 2^675564591 is an apocalyptic number.

675564591 is a deficient number, since it is larger than the sum of its proper divisors (294476929).

675564591 is a wasteful number, since it uses less digits than its factorization.

675564591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17322185.

The product of its digits is 1134000, while the sum is 48.

The square root of 675564591 is about 25991.6254012711. The cubic root of 675564591 is about 877.4498272463.

The spelling of 675564591 in words is "six hundred seventy-five million, five hundred sixty-four thousand, five hundred ninety-one".