445639713 has 8 divisors (see below), whose sum is σ = 603055008. Its totient is φ = 292658784.

The previous prime is 445639693. The next prime is 445639739. The reversal of 445639713 is 317936544.

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

It is not a de Polignac number, because 445639713 - 2⁵ = 445639681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445639763) 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, 1108356 + ... + 1108757.

It is an arithmetic number, because the mean of its divisors is an integer number (75381876).

Almost surely, 2^445639713 is an apocalyptic number.

It is an amenable number.

445639713 is a deficient number, since it is larger than the sum of its proper divisors (157415295).

445639713 is a wasteful number, since it uses less digits than its factorization.

445639713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217183.

The product of its digits is 272160, while the sum is 42.

The square root of 445639713 is about 21110.1803166150. The cubic root of 445639713 is about 763.8263364724.

The spelling of 445639713 in words is "four hundred forty-five million, six hundred thirty-nine thousand, seven hundred thirteen".