725369345 has 8 divisors (see below), whose sum is σ = 921645864. Its totient is φ = 546160384.

The previous prime is 725369321. The next prime is 725369347. The reversal of 725369345 is 543963527.

It can be written as a sum of positive squares in 4 ways, for example, as 68574961 + 656794384 = 8281^2 + 25628^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725369345 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725369296 and 725369305.

It is not an unprimeable number, because it can be changed into a prime (725369347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4266794 + ... + 4266963.

It is an arithmetic number, because the mean of its divisors is an integer number (115205733).

Almost surely, 2^725369345 is an apocalyptic number.

It is an amenable number.

725369345 is a deficient number, since it is larger than the sum of its proper divisors (196276519).

725369345 is a wasteful number, since it uses less digits than its factorization.

725369345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8533779.

The product of its digits is 680400, while the sum is 44.

The square root of 725369345 is about 26932.6817268537. The cubic root of 725369345 is about 898.5034160455.

The spelling of 725369345 in words is "seven hundred twenty-five million, three hundred sixty-nine thousand, three hundred forty-five".