726685850 has 24 divisors (see below), whose sum is σ = 1474512768. Its totient is φ = 264249200.

The previous prime is 726685829. The next prime is 726685877. The reversal of 726685850 is 58586627.

It is a junction number, because it is equal to n+sod(n) for n = 726685795 and 726685804.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 660074 + ... + 661173.

It is an arithmetic number, because the mean of its divisors is an integer number (61438032).

Almost surely, 2^726685850 is an apocalyptic number.

726685850 is an abundant number, since it is smaller than the sum of its proper divisors (747826918).

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

726685850 is a wasteful number, since it uses less digits than its factorization.

726685850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321270 (or 1321265 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 726685850 is about 26957.1113066664. Note that the first 3 decimals coincide. The cubic root of 726685850 is about 899.0466654239.

The spelling of 726685850 in words is "seven hundred twenty-six million, six hundred eighty-five thousand, eight hundred fifty".