723666051 has 12 divisors (see below), whose sum is σ = 1045741320. Its totient is φ = 482238240.

The previous prime is 723666037. The next prime is 723666059. The reversal of 723666051 is 150666327.

It is not a de Polignac number, because 723666051 - 2¹³ = 723657859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 723665997 and 723666015.

It is not an unprimeable number, because it can be changed into a prime (723666059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6895 + ... + 38663.

It is an arithmetic number, because the mean of its divisors is an integer number (87145110).

Almost surely, 2^723666051 is an apocalyptic number.

723666051 is a deficient number, since it is larger than the sum of its proper divisors (322075269).

723666051 is a wasteful number, since it uses less digits than its factorization.

723666051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34306 (or 34303 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 723666051 is about 26901.0418199742. The cubic root of 723666051 is about 897.7995838311.

The spelling of 723666051 in words is "seven hundred twenty-three million, six hundred sixty-six thousand, fifty-one".