727887140 has 12 divisors (see below), whose sum is σ = 1528563036. Its totient is φ = 291154848.

The previous prime is 727887137. The next prime is 727887143. The reversal of 727887140 is 41788727.

It is an interprime number because it is at equal distance from previous prime (727887137) and next prime (727887143).

It can be written as a sum of positive squares in 2 ways, for example, as 450797824 + 277089316 = 21232^2 + 16646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 727887091 and 727887100.

It is not an unprimeable number, because it can be changed into a prime (727887143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18197159 + ... + 18197198.

It is an arithmetic number, because the mean of its divisors is an integer number (127380253).

Almost surely, 2^727887140 is an apocalyptic number.

It is an amenable number.

727887140 is an abundant number, since it is smaller than the sum of its proper divisors (800675896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

727887140 is a wasteful number, since it uses less digits than its factorization.

727887140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36394366 (or 36394364 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 44.

The square root of 727887140 is about 26979.3836104534. The cubic root of 727887140 is about 899.5417996864.

The spelling of 727887140 in words is "seven hundred twenty-seven million, eight hundred eighty-seven thousand, one hundred forty".