727138461 has 8 divisors (see below), whose sum is σ = 1108020544. Its totient is φ = 415507680.

The previous prime is 727138453. The next prime is 727138463. The reversal of 727138461 is 164831727.

727138461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 727138461 - 2³ = 727138453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727138463) 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, 17312800 + ... + 17312841.

It is an arithmetic number, because the mean of its divisors is an integer number (138502568).

Almost surely, 2^727138461 is an apocalyptic number.

It is an amenable number.

727138461 is a deficient number, since it is larger than the sum of its proper divisors (380882083).

727138461 is a wasteful number, since it uses less digits than its factorization.

727138461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34625651.

The product of its digits is 56448, while the sum is 39.

The square root of 727138461 is about 26965.5050203033. The cubic root of 727138461 is about 899.2332815788.

The spelling of 727138461 in words is "seven hundred twenty-seven million, one hundred thirty-eight thousand, four hundred sixty-one".