731148664 has 8 divisors (see below), whose sum is σ = 1370903760. Its totient is φ = 365574328.

The previous prime is 731148661. The next prime is 731148673. The reversal of 731148664 is 466841137.

731148664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731148661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45696784 + ... + 45696799.

It is an arithmetic number, because the mean of its divisors is an integer number (171362970).

Almost surely, 2^731148664 is an apocalyptic number.

It is an amenable number.

731148664 is a deficient number, since it is larger than the sum of its proper divisors (639755096).

731148664 is a wasteful number, since it uses less digits than its factorization.

731148664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91393589 (or 91393585 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 731148664 is about 27039.7607977585. The cubic root of 731148664 is about 900.8833565637.

The spelling of 731148664 in words is "seven hundred thirty-one million, one hundred forty-eight thousand, six hundred sixty-four".