398873585 has 16 divisors (see below), whose sum is σ = 522685440. Its totient is φ = 289799040.

The previous prime is 398873581. The next prime is 398873591. The reversal of 398873585 is 585378893.

It is not a de Polignac number, because 398873585 - 2² = 398873581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398873585.

It is not an unprimeable number, because it can be changed into a prime (398873581) 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 15 ways as a sum of consecutive naturals, for example, 62576 + ... + 68654.

It is an arithmetic number, because the mean of its divisors is an integer number (32667840).

Almost surely, 2^398873585 is an apocalyptic number.

It is an amenable number.

398873585 is a deficient number, since it is larger than the sum of its proper divisors (123811855).

398873585 is a wasteful number, since it uses less digits than its factorization.

398873585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288.

The product of its digits is 7257600, while the sum is 56.

The square root of 398873585 is about 19971.8197718686. The cubic root of 398873585 is about 736.1140247734.

The spelling of 398873585 in words is "three hundred ninety-eight million, eight hundred seventy-three thousand, five hundred eighty-five".