726807845 has 8 divisors (see below), whose sum is σ = 878023800. Its totient is φ = 577543360.

The previous prime is 726807833. The next prime is 726807877. The reversal of 726807845 is 548708627.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 726787681 = 142^2 + 26959^2 .

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

It is not a de Polignac number, because 726807845 - 2¹⁶ = 726742309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726807845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487046 + ... + 488535.

It is an arithmetic number, because the mean of its divisors is an integer number (109752975).

Almost surely, 2^726807845 is an apocalyptic number.

It is an amenable number.

726807845 is a deficient number, since it is larger than the sum of its proper divisors (151215955).

726807845 is a wasteful number, since it uses less digits than its factorization.

726807845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975735.

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 726807845 is about 26959.3739727020. The cubic root of 726807845 is about 899.0969728394.

The spelling of 726807845 in words is "seven hundred twenty-six million, eight hundred seven thousand, eight hundred forty-five".