398375297 has 8 divisors (see below), whose sum is σ = 424605312. Its totient is φ = 372456000.

The previous prime is 398375287. The next prime is 398375317. The reversal of 398375297 is 792573893.

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 398375297 - 2²⁶ = 331266433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398375207) 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 7 ways as a sum of consecutive naturals, for example, 75029 + ... + 80162.

It is an arithmetic number, because the mean of its divisors is an integer number (53075664).

Almost surely, 2^398375297 is an apocalyptic number.

It is an amenable number.

398375297 is a deficient number, since it is larger than the sum of its proper divisors (26230015).

398375297 is a wasteful number, since it uses less digits than its factorization.

398375297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155359.

The product of its digits is 2857680, while the sum is 53.

The square root of 398375297 is about 19959.3410963388. The cubic root of 398375297 is about 735.8073698632.

The spelling of 398375297 in words is "three hundred ninety-eight million, three hundred seventy-five thousand, two hundred ninety-seven".