723164645 has 32 divisors (see below), whose sum is σ = 1009478400. Its totient is φ = 487088640.

The previous prime is 723164639. The next prime is 723164647. The reversal of 723164645 is 546461327.

It is a happy number.

It is not a de Polignac number, because 723164645 - 2¹⁶ = 723099109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 723164599 and 723164608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723164647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 891290 + ... + 892100.

It is an arithmetic number, because the mean of its divisors is an integer number (31546200).

Almost surely, 2^723164645 is an apocalyptic number.

It is an amenable number.

723164645 is a deficient number, since it is larger than the sum of its proper divisors (286313755).

723164645 is a wasteful number, since it uses less digits than its factorization.

723164645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its digits is 120960, while the sum is 38.

The square root of 723164645 is about 26891.7207519340. The cubic root of 723164645 is about 897.5921833294.

The spelling of 723164645 in words is "seven hundred twenty-three million, one hundred sixty-four thousand, six hundred forty-five".