731676672 has 128 divisors (see below), whose sum is σ = 2170519200. Its totient is φ = 243597312.

The previous prime is 731676661. The next prime is 731676697. The reversal of 731676672 is 276676137.

It is a tau number, because it is divible by the number of its divisors (128).

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, 884323 + ... + 885149.

Almost surely, 2^731676672 is an apocalyptic number.

731676672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731676672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085259600).

731676672 is an abundant number, since it is smaller than the sum of its proper divisors (1438842528).

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

731676672 is an frugal number, since it uses more digits than its factorization.

731676672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 832 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 731676672 is about 27049.5225835873. The cubic root of 731676672 is about 901.1001657136.

The spelling of 731676672 in words is "seven hundred thirty-one million, six hundred seventy-six thousand, six hundred seventy-two".