731389116 has 24 divisors (see below), whose sum is σ = 1796394880. Its totient is φ = 230964912.

The previous prime is 731389103. The next prime is 731389123. The reversal of 731389116 is 611983137.

731389116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×731389116² = 1069860078006522912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603696 + ... + 1604151.

Almost surely, 2^731389116 is an apocalyptic number.

731389116 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

731389116 is an abundant number, since it is smaller than the sum of its proper divisors (1065005764).

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

731389116 is a wasteful number, since it uses less digits than its factorization.

731389116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207873 (or 3207871 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 731389116 is about 27044.2066994024. The cubic root of 731389116 is about 900.9821032224.

The spelling of 731389116 in words is "seven hundred thirty-one million, three hundred eighty-nine thousand, one hundred sixteen".