812523726 has 48 divisors (see below), whose sum is σ = 2039547744. Its totient is φ = 228966912.

The previous prime is 812523713. The next prime is 812523727. The reversal of 812523726 is 627325218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812523727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34971 + ... + 53366.

It is an arithmetic number, because the mean of its divisors is an integer number (42490578).

Almost surely, 2^812523726 is an apocalyptic number.

812523726 is an abundant number, since it is smaller than the sum of its proper divisors (1227024018).

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

812523726 is a wasteful number, since it uses less digits than its factorization.

812523726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88425 (or 88422 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 812523726 is about 28504.8018060116. The cubic root of 812523726 is about 933.1368719425.

The spelling of 812523726 in words is "eight hundred twelve million, five hundred twenty-three thousand, seven hundred twenty-six".