726534787 has 16 divisors (see below), whose sum is σ = 870577920. Its totient is φ = 598514400.

The previous prime is 726534769. The next prime is 726534793. The reversal of 726534787 is 787435627.

It is a happy number.

It is not a de Polignac number, because 726534787 - 2⁷ = 726534659 is a prime.

It is a super-2 number, since 2×726534787² = 1055705593442270738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726534787.

It is not an unprimeable number, because it can be changed into a prime (726534707) 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 15 ways as a sum of consecutive naturals, for example, 70764 + ... + 80377.

It is an arithmetic number, because the mean of its divisors is an integer number (54411120).

Almost surely, 2^726534787 is an apocalyptic number.

726534787 is a deficient number, since it is larger than the sum of its proper divisors (144043133).

726534787 is a wasteful number, since it uses less digits than its factorization.

726534787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151194.

The product of its digits is 1975680, while the sum is 49.

The square root of 726534787 is about 26954.3092473170. The cubic root of 726534787 is about 898.9843633537.

The spelling of 726534787 in words is "seven hundred twenty-six million, five hundred thirty-four thousand, seven hundred eighty-seven".