726436007 has 16 divisors (see below), whose sum is σ = 813843744. Its totient is φ = 642816000.

The previous prime is 726436001. The next prime is 726436019. The reversal of 726436007 is 700634627.

It is a cyclic number.

It is not a de Polignac number, because 726436007 - 2¹⁰ = 726434983 is a prime.

It is a super-2 number, since 2×726436007² = 1055418544532208098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726436001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59507 + ... + 70667.

It is an arithmetic number, because the mean of its divisors is an integer number (50865234).

Almost surely, 2^726436007 is an apocalyptic number.

726436007 is a deficient number, since it is larger than the sum of its proper divisors (87407737).

726436007 is a wasteful number, since it uses less digits than its factorization.

726436007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 726436007 is about 26952.4768249599. The cubic root of 726436007 is about 898.9436193996.

The spelling of 726436007 in words is "seven hundred twenty-six million, four hundred thirty-six thousand, seven".