723989525 has 12 divisors (see below), whose sum is σ = 1025996832. Its totient is φ = 496449840.

The previous prime is 723989503. The next prime is 723989533. The reversal of 723989525 is 525989327.

It is not a de Polignac number, because 723989525 - 2¹⁰ = 723988501 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2068367 + ... + 2068716.

It is an arithmetic number, because the mean of its divisors is an integer number (85499736).

Almost surely, 2^723989525 is an apocalyptic number.

It is an amenable number.

723989525 is a deficient number, since it is larger than the sum of its proper divisors (302007307).

723989525 is a wasteful number, since it uses less digits than its factorization.

723989525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137100 (or 4137095 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 50.

The square root of 723989525 is about 26907.0534432888. The cubic root of 723989525 is about 897.9333340886.

The spelling of 723989525 in words is "seven hundred twenty-three million, nine hundred eighty-nine thousand, five hundred twenty-five".