398287545 has 8 divisors (see below), whose sum is σ = 637260096. Its totient is φ = 212420016.

The previous prime is 398287523. The next prime is 398287559. The reversal of 398287545 is 545782893.

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

It is not a de Polignac number, because 398287545 - 2⁸ = 398287289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13276237 + ... + 13276266.

It is an arithmetic number, because the mean of its divisors is an integer number (79657512).

Almost surely, 2^398287545 is an apocalyptic number.

It is an amenable number.

398287545 is a deficient number, since it is larger than the sum of its proper divisors (238972551).

398287545 is a wasteful number, since it uses less digits than its factorization.

398287545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26552511.

The product of its digits is 2419200, while the sum is 51.

The square root of 398287545 is about 19957.1427063094. The cubic root of 398287545 is about 735.7533393127.

The spelling of 398287545 in words is "three hundred ninety-eight million, two hundred eighty-seven thousand, five hundred forty-five".