731325009 has 8 divisors (see below), whose sum is σ = 982115680. Its totient is φ = 484042176.

The previous prime is 731324981. The next prime is 731325031. The reversal of 731325009 is 900523137.

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

It is not a de Polignac number, because 731325009 - 2⁸ = 731324753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731325059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876472 + ... + 877305.

It is an arithmetic number, because the mean of its divisors is an integer number (122764460).

Almost surely, 2^731325009 is an apocalyptic number.

It is an amenable number.

731325009 is a deficient number, since it is larger than the sum of its proper divisors (250790671).

731325009 is a wasteful number, since it uses less digits than its factorization.

731325009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753919.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 731325009 is about 27043.0214473161. The cubic root of 731325009 is about 900.9557784540.

The spelling of 731325009 in words is "seven hundred thirty-one million, three hundred twenty-five thousand, nine".