726632751 has 64 divisors (see below), whose sum is σ = 1195084800. Its totient is φ = 387680256.

The previous prime is 726632749. The next prime is 726632773. The reversal of 726632751 is 157236627.

It is not a de Polignac number, because 726632751 - 2¹ = 726632749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726632051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 465310 + ... + 466868.

It is an arithmetic number, because the mean of its divisors is an integer number (18673200).

Almost surely, 2^726632751 is an apocalyptic number.

726632751 is a deficient number, since it is larger than the sum of its proper divisors (468452049).

726632751 is a wasteful number, since it uses less digits than its factorization.

726632751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its digits is 105840, while the sum is 39.

The square root of 726632751 is about 26956.1264094083. The cubic root of 726632751 is about 899.0247670838.

The spelling of 726632751 in words is "seven hundred twenty-six million, six hundred thirty-two thousand, seven hundred fifty-one".