675691567 has 4 divisors (see below), whose sum is σ = 677850640. Its totient is φ = 673532496.

The previous prime is 675691543. The next prime is 675691573. The reversal of 675691567 is 765196576.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675691567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675691517) 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, 1079067 + ... + 1079692.

It is an arithmetic number, because the mean of its divisors is an integer number (169462660).

Almost surely, 2^675691567 is an apocalyptic number.

675691567 is a deficient number, since it is larger than the sum of its proper divisors (2159073).

675691567 is a wasteful number, since it uses less digits than its factorization.

675691567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159072.

The product of its digits is 2381400, while the sum is 52.

The square root of 675691567 is about 25994.0679194312. The cubic root of 675691567 is about 877.5047976080.

The spelling of 675691567 in words is "six hundred seventy-five million, six hundred ninety-one thousand, five hundred sixty-seven".