725819307 has 8 divisors (see below), whose sum is σ = 971063184. Its totient is φ = 482227488.

The previous prime is 725819299. The next prime is 725819309. The reversal of 725819307 is 703918527.

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

It is not a de Polignac number, because 725819307 - 2³ = 725819299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725819309) 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 7 ways as a sum of consecutive naturals, for example, 411988 + ... + 413745.

It is an arithmetic number, because the mean of its divisors is an integer number (121382898).

Almost surely, 2^725819307 is an apocalyptic number.

725819307 is a deficient number, since it is larger than the sum of its proper divisors (245243877).

725819307 is a wasteful number, since it uses less digits than its factorization.

725819307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826029.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 725819307 is about 26941.0338888470. The cubic root of 725819307 is about 898.6891645558.

It can be divided in two parts, 7258 and 19307, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 725819307 in words is "seven hundred twenty-five million, eight hundred nineteen thousand, three hundred seven".