398397485 has 8 divisors (see below), whose sum is σ = 480184416. Its totient is φ = 317313040.

The previous prime is 398397473. The next prime is 398397497. The reversal of 398397485 is 584793893.

It is an interprime number because it is at equal distance from previous prime (398397473) and next prime (398397497).

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

It is not a de Polignac number, because 398397485 - 2⁴ = 398397469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 398397485.

It is a congruent number.

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, 174371 + ... + 176640.

It is an arithmetic number, because the mean of its divisors is an integer number (60023052).

Almost surely, 2^398397485 is an apocalyptic number.

It is an amenable number.

398397485 is a deficient number, since it is larger than the sum of its proper divisors (81786931).

398397485 is a wasteful number, since it uses less digits than its factorization.

398397485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351243.

The product of its digits is 6531840, while the sum is 56.

The square root of 398397485 is about 19959.8969185715. The cubic root of 398397485 is about 735.8210301738.

The spelling of 398397485 in words is "three hundred ninety-eight million, three hundred ninety-seven thousand, four hundred eighty-five".