657723068 has 6 divisors (see below), whose sum is σ = 1151015376. Its totient is φ = 328861532.

The previous prime is 657723067. The next prime is 657723089. The reversal of 657723068 is 860327756.

657723068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657723067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82215380 + ... + 82215387.

It is an arithmetic number, because the mean of its divisors is an integer number (191835896).

Almost surely, 2^657723068 is an apocalyptic number.

It is an amenable number.

657723068 is a deficient number, since it is larger than the sum of its proper divisors (493292308).

657723068 is a wasteful number, since it uses less digits than its factorization.

657723068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164430771 (or 164430769 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 657723068 is about 25646.1121419992. The cubic root of 657723068 is about 869.6563878450.

The spelling of 657723068 in words is "six hundred fifty-seven million, seven hundred twenty-three thousand, sixty-eight".