675365981 has 8 divisors (see below), whose sum is σ = 694950144. Its totient is φ = 655930080.

The previous prime is 675365947. The next prime is 675366011. The reversal of 675365981 is 189563576.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 675365981 - 2¹⁰ = 675364957 is a prime.

It is a super-2 number, since 2×675365981² = 912238416584184722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675365081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27791 + ... + 46076.

It is an arithmetic number, because the mean of its divisors is an integer number (86868768).

Almost surely, 2^675365981 is an apocalyptic number.

It is an amenable number.

675365981 is a deficient number, since it is larger than the sum of its proper divisors (19584163).

675365981 is a wasteful number, since it uses less digits than its factorization.

675365981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74131.

The product of its digits is 1360800, while the sum is 50.

The square root of 675365981 is about 25987.8044667109. The cubic root of 675365981 is about 877.3638313286.

The spelling of 675365981 in words is "six hundred seventy-five million, three hundred sixty-five thousand, nine hundred eighty-one".