725764623 has 8 divisors (see below), whose sum is σ = 967922736. Its totient is φ = 483724800.

The previous prime is 725764597. The next prime is 725764639. The reversal of 725764623 is 326467527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 725764623 - 2¹² = 725760527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725364623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14098 + ... + 40623.

It is an arithmetic number, because the mean of its divisors is an integer number (120990342).

Almost surely, 2^725764623 is an apocalyptic number.

725764623 is a deficient number, since it is larger than the sum of its proper divisors (242158113).

725764623 is a wasteful number, since it uses less digits than its factorization.

725764623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59145.

The product of its digits is 423360, while the sum is 42.

The square root of 725764623 is about 26940.0189866303. The cubic root of 725764623 is about 898.6665945892. Note that the first 3 decimals are identical.

The spelling of 725764623 in words is "seven hundred twenty-five million, seven hundred sixty-four thousand, six hundred twenty-three".