826821132 has 24 divisors (see below), whose sum is σ = 1932791616. Its totient is φ = 275101008.

The previous prime is 826821131. The next prime is 826821137. The reversal of 826821132 is 231128628.

It is a super-2 number, since 2×826821132² = 1367266368643522848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 826821093 and 826821102.

It is not an unprimeable number, because it can be changed into a prime (826821131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56418 + ... + 69545.

It is an arithmetic number, because the mean of its divisors is an integer number (80532984).

Almost surely, 2^826821132 is an apocalyptic number.

It is an amenable number.

826821132 is an abundant number, since it is smaller than the sum of its proper divisors (1105970484).

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

826821132 is a wasteful number, since it uses less digits than its factorization.

826821132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126517 (or 126515 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 826821132 is about 28754.4975960283. The cubic root of 826821132 is about 938.5783292731.

The spelling of 826821132 in words is "eight hundred twenty-six million, eight hundred twenty-one thousand, one hundred thirty-two".