725788703 has 4 divisors (see below), whose sum is σ = 735731088. Its totient is φ = 715846320.

The previous prime is 725788691. The next prime is 725788729. The reversal of 725788703 is 307887527.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 307887527 = 17 ⋅18111031.

It is a cyclic number.

It is not a de Polignac number, because 725788703 - 2¹² = 725784607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725788783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4971083 + ... + 4971228.

It is an arithmetic number, because the mean of its divisors is an integer number (183932772).

Almost surely, 2^725788703 is an apocalyptic number.

725788703 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

725788703 is a deficient number, since it is larger than the sum of its proper divisors (9942385).

725788703 is an equidigital number, since it uses as much as digits as its factorization.

725788703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942384.

The product of its (nonzero) digits is 658560, while the sum is 47.

The square root of 725788703 is about 26940.4659016877. The cubic root of 725788703 is about 898.6765333727.

The spelling of 725788703 in words is "seven hundred twenty-five million, seven hundred eighty-eight thousand, seven hundred three".