727490101 has 8 divisors (see below), whose sum is σ = 802560024. Its totient is φ = 655150080.

The previous prime is 727490083. The next prime is 727490171. The reversal of 727490101 is 101094727.

It can be written as a sum of positive squares in 4 ways, for example, as 19131876 + 708358225 = 4374^2 + 26615^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-727490101 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727490171) 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 7 ways as a sum of consecutive naturals, for example, 681916 + ... + 682981.

It is an arithmetic number, because the mean of its divisors is an integer number (100320003).

Almost surely, 2^727490101 is an apocalyptic number.

It is an amenable number.

727490101 is a deficient number, since it is larger than the sum of its proper divisors (75069923).

727490101 is a wasteful number, since it uses less digits than its factorization.

727490101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364951.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 727490101 is about 26972.0244141963. The cubic root of 727490101 is about 899.3782129089.

The spelling of 727490101 in words is "seven hundred twenty-seven million, four hundred ninety thousand, one hundred one".