826307668 has 6 divisors (see below), whose sum is σ = 1446038426. Its totient is φ = 413153832.

The previous prime is 826307653. The next prime is 826307681. The reversal of 826307668 is 866703628.

It can be written as a sum of positive squares in only one way, i.e., 774063684 + 52243984 = 27822^2 + 7228^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 103288455 + ... + 103288462.

Almost surely, 2^826307668 is an apocalyptic number.

It is an amenable number.

826307668 is a deficient number, since it is larger than the sum of its proper divisors (619730758).

826307668 is a wasteful number, since it uses less digits than its factorization.

826307668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206576921 (or 206576919 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 826307668 is about 28745.5677974884. The cubic root of 826307668 is about 938.3840002704.

The spelling of 826307668 in words is "eight hundred twenty-six million, three hundred seven thousand, six hundred sixty-eight".