826389001 has 8 divisors (see below), whose sum is σ = 834527880. Its totient is φ = 818264832.

The previous prime is 826388971. The next prime is 826389013. The reversal of 826389001 is 100983628.

It can be written as a sum of positive squares in 4 ways, for example, as 1263376 + 825125625 = 1124^2 + 28725^2 .

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 826389001 - 2¹⁵ = 826356233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (826389301) 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, 134055 + ... + 140083.

It is an arithmetic number, because the mean of its divisors is an integer number (104315985).

Almost surely, 2^826389001 is an apocalyptic number.

It is an amenable number.

826389001 is a deficient number, since it is larger than the sum of its proper divisors (8138879).

826389001 is a wasteful number, since it uses less digits than its factorization.

826389001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 826389001 is about 28746.9824677304. The cubic root of 826389001 is about 938.4147874637.

The spelling of 826389001 in words is "eight hundred twenty-six million, three hundred eighty-nine thousand, one".