727066989 has 32 divisors (see below), whose sum is σ = 1176873600. Its totient is φ = 439966080.

The previous prime is 727066979. The next prime is 727067021. The reversal of 727066989 is 989660727.

It is a de Polignac number, because none of the positive numbers 2^k-727066989 is a prime.

It is a super-2 number, since 2×727066989² = 1057252812987052242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727066979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244737 + ... + 247689.

It is an arithmetic number, because the mean of its divisors is an integer number (36777300).

Almost surely, 2^727066989 is an apocalyptic number.

It is an amenable number.

727066989 is a deficient number, since it is larger than the sum of its proper divisors (449806611).

727066989 is a wasteful number, since it uses less digits than its factorization.

727066989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802 (or 3796 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 727066989 is about 26964.1797390538. The cubic root of 727066989 is about 899.2038180903.

The spelling of 727066989 in words is "seven hundred twenty-seven million, sixty-six thousand, nine hundred eighty-nine".