723266903401 has 9 divisors (see below), whose sum is σ = 841358220951. Its totient is φ = 619937957352.

The previous prime is 723266903399. The next prime is 723266903441. The reversal of 723266903401 is 104309662327.

The square root of 723266903401 is 850451.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 634627323225 + 88639580176 = 796635^2 + 297724^2 .

It is not a de Polignac number, because 723266903401 - 2¹ = 723266903399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723266903441) 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 8 ways as a sum of consecutive naturals, for example, 5892411 + ... + 6013903.

Almost surely, 2^723266903401 is an apocalyptic number.

723266903401 is the 850451-st square number.

723266903401 is the 425226-th centered octagonal number.

It is an amenable number.

723266903401 is a deficient number, since it is larger than the sum of its proper divisors (118091317550).

723266903401 is an frugal number, since it uses more digits than its factorization.

723266903401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243000 (or 121500 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 723266903401 in words is "seven hundred twenty-three billion, two hundred sixty-six million, nine hundred three thousand, four hundred one".