826486890 has 32 divisors (see below), whose sum is σ = 2087968320. Its totient is φ = 208796544.

The previous prime is 826486889. The next prime is 826486891. The reversal of 826486890 is 98684628.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (826486889) and next prime (826486891).

It is not an unprimeable number, because it can be changed into a prime (826486891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724419 + ... + 725558.

It is an arithmetic number, because the mean of its divisors is an integer number (65249010).

Almost surely, 2^826486890 is an apocalyptic number.

826486890 is an abundant number, since it is smaller than the sum of its proper divisors (1261481430).

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

826486890 is a wasteful number, since it uses less digits than its factorization.

826486890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450006.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 826486890 is about 28748.6850134054. The cubic root of 826486890 is about 938.4518389646.

The spelling of 826486890 in words is "eight hundred twenty-six million, four hundred eighty-six thousand, eight hundred ninety".