727489231 has 12 divisors (see below), whose sum is σ = 846978960. Its totient is φ = 623034720.

The previous prime is 727489223. The next prime is 727489237. The reversal of 727489231 is 132984727.

It is not a de Polignac number, because 727489231 - 2³ = 727489223 is a prime.

It is a super-4 number, since 4×727489231⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727489237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59110 + ... + 70348.

It is an arithmetic number, because the mean of its divisors is an integer number (70581580).

Almost surely, 2^727489231 is an apocalyptic number.

727489231 is a deficient number, since it is larger than the sum of its proper divisors (119489729).

727489231 is a wasteful number, since it uses less digits than its factorization.

727489231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574 (or 12567 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 727489231 is about 26972.0082863698. The cubic root of 727489231 is about 899.3778543888.

The spelling of 727489231 in words is "seven hundred twenty-seven million, four hundred eighty-nine thousand, two hundred thirty-one".