826225889 has 4 divisors (see below), whose sum is σ = 826737840. Its totient is φ = 825713940.

The previous prime is 826225871. The next prime is 826225901. The reversal of 826225889 is 988522628.

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 a de Polignac number, because none of the positive numbers 2^k-826225889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (826225819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253547 + ... + 256784.

It is an arithmetic number, because the mean of its divisors is an integer number (206684460).

Almost surely, 2^826225889 is an apocalyptic number.

It is an amenable number.

826225889 is a deficient number, since it is larger than the sum of its proper divisors (511951).

826225889 is a wasteful number, since it uses less digits than its factorization.

826225889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511950.

The product of its digits is 1105920, while the sum is 50.

The square root of 826225889 is about 28744.1452995214. The cubic root of 826225889 is about 938.3530422145.

The spelling of 826225889 in words is "eight hundred twenty-six million, two hundred twenty-five thousand, eight hundred eighty-nine".