826091628 has 12 divisors (see below), whose sum is σ = 1927547160. Its totient is φ = 275363872.

The previous prime is 826091587. The next prime is 826091653. The reversal of 826091628 is 826190628.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 826091628.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34420473 + ... + 34420496.

It is an arithmetic number, because the mean of its divisors is an integer number (160628930).

Almost surely, 2^826091628 is an apocalyptic number.

It is an amenable number.

826091628 is an abundant number, since it is smaller than the sum of its proper divisors (1101455532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

826091628 is a wasteful number, since it uses less digits than its factorization.

826091628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68840976 (or 68840974 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 826091628 is about 28741.8097551285. The cubic root of 826091628 is about 938.3022122723.

The spelling of 826091628 in words is "eight hundred twenty-six million, ninety-one thousand, six hundred twenty-eight".