675821007 has 12 divisors (see below), whose sum is σ = 985664784. Its totient is φ = 446172480.

The previous prime is 675820979. The next prime is 675821011. The reversal of 675821007 is 700128576.

675821007 is a `hidden beast` number, since 67 + 582 + 10 + 0 + 7 = 666.

It is not a de Polignac number, because 675821007 - 2⁷ = 675820879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675821087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363594 + ... + 365447.

It is an arithmetic number, because the mean of its divisors is an integer number (82138732).

Almost surely, 2^675821007 is an apocalyptic number.

675821007 is a deficient number, since it is larger than the sum of its proper divisors (309843777).

675821007 is a wasteful number, since it uses less digits than its factorization.

675821007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729150 (or 729147 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 675821007 is about 25996.5575990361. The cubic root of 675821007 is about 877.5608275948.

The spelling of 675821007 in words is "six hundred seventy-five million, eight hundred twenty-one thousand, seven".