727968081 has 8 divisors (see below), whose sum is σ = 996857344. Its totient is φ = 472195440.

The previous prime is 727968049. The next prime is 727968089. The reversal of 727968081 is 180869727.

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

It is not a de Polignac number, because 727968081 - 2⁵ = 727968049 is a prime.

It is a super-2 number, since 2×727968081² = 1059875053909645122, 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 727968081.

It is not an unprimeable number, because it can be changed into a prime (727968089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279025 + ... + 3279246.

It is an arithmetic number, because the mean of its divisors is an integer number (124607168).

Almost surely, 2^727968081 is an apocalyptic number.

It is an amenable number.

727968081 is a deficient number, since it is larger than the sum of its proper divisors (268889263).

727968081 is a wasteful number, since it uses less digits than its factorization.

727968081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6558311.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 727968081 is about 26980.8836215569. The cubic root of 727968081 is about 899.5751414460.

The spelling of 727968081 in words is "seven hundred twenty-seven million, nine hundred sixty-eight thousand, eighty-one".