398248085 has 8 divisors (see below), whose sum is σ = 483947520. Its totient is φ = 314565264.

The previous prime is 398248079. The next prime is 398248099. The reversal of 398248085 is 580842893.

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

It is a cyclic number.

It is not a de Polignac number, because 398248085 - 2⁶ = 398248021 is a prime.

It is a Curzon number.

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, 503717 + ... + 504506.

It is an arithmetic number, because the mean of its divisors is an integer number (60493440).

Almost surely, 2^398248085 is an apocalyptic number.

It is an amenable number.

398248085 is a deficient number, since it is larger than the sum of its proper divisors (85699435).

398248085 is a wasteful number, since it uses less digits than its factorization.

398248085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008307.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 398248085 is about 19956.1540633460. The cubic root of 398248085 is about 735.7290404646.

The spelling of 398248085 in words is "three hundred ninety-eight million, two hundred forty-eight thousand, eighty-five".