726729755 has 8 divisors (see below), whose sum is σ = 872228112. Its totient is φ = 581282208.

The previous prime is 726729749. The next prime is 726729761. The reversal of 726729755 is 557927627.

It is an interprime number because it is at equal distance from previous prime (726729749) and next prime (726729761).

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

It is a cyclic number.

It is not a de Polignac number, because 726729755 - 2¹⁸ = 726467611 is a prime.

It is a super-2 number, since 2×726729755² = 1056272273604720050, which contains 22 as substring.

It is a Duffinian 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, 35189 + ... + 51881.

It is an arithmetic number, because the mean of its divisors is an integer number (109028514).

Almost surely, 2^726729755 is an apocalyptic number.

726729755 is a deficient number, since it is larger than the sum of its proper divisors (145498357).

726729755 is a wasteful number, since it uses less digits than its factorization.

726729755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25405.

The product of its digits is 1852200, while the sum is 50.

The square root of 726729755 is about 26957.9256434912. The cubic root of 726729755 is about 899.0647712986.

The spelling of 726729755 in words is "seven hundred twenty-six million, seven hundred twenty-nine thousand, seven hundred fifty-five".