676363021 has 4 divisors (see below), whose sum is σ = 678148000. Its totient is φ = 674578044.

The previous prime is 676362983. The next prime is 676363043. The reversal of 676363021 is 120363676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 676363021 - 2⁹ = 676362509 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 (676363081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891921 + ... + 892678.

It is an arithmetic number, because the mean of its divisors is an integer number (169537000).

Almost surely, 2^676363021 is an apocalyptic number.

It is an amenable number.

676363021 is a deficient number, since it is larger than the sum of its proper divisors (1784979).

676363021 is a wasteful number, since it uses less digits than its factorization.

676363021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784978.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 676363021 is about 26006.9802360828. The cubic root of 676363021 is about 877.7953685692.

The spelling of 676363021 in words is "six hundred seventy-six million, three hundred sixty-three thousand, twenty-one".