820286726 has 8 divisors (see below), whose sum is σ = 1406205840. Its totient is φ = 351551448.

The previous prime is 820286699. The next prime is 820286801. The reversal of 820286726 is 627682028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29295941 + ... + 29295968.

It is an arithmetic number, because the mean of its divisors is an integer number (175775730).

Almost surely, 2^820286726 is an apocalyptic number.

820286726 is a deficient number, since it is larger than the sum of its proper divisors (585919114).

820286726 is a wasteful number, since it uses less digits than its factorization.

820286726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58591918.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 820286726 is about 28640.6481421074. The cubic root of 820286726 is about 936.0992442007.

The spelling of 820286726 in words is "eight hundred twenty million, two hundred eighty-six thousand, seven hundred twenty-six".