398207386 has 8 divisors (see below), whose sum is σ = 597461760. Its totient is φ = 199053468.

The previous prime is 398207333. The next prime is 398207387. The reversal of 398207386 is 683702893.

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

It is not an unprimeable number, because it can be changed into a prime (398207387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14266 + ... + 31621.

It is an arithmetic number, because the mean of its divisors is an integer number (74682720).

Almost surely, 2^398207386 is an apocalyptic number.

398207386 is a deficient number, since it is larger than the sum of its proper divisors (199254374).

398207386 is a wasteful number, since it uses less digits than its factorization.

398207386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50228.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 398207386 is about 19955.1343267842. The cubic root of 398207386 is about 735.7039769783.

The spelling of 398207386 in words is "three hundred ninety-eight million, two hundred seven thousand, three hundred eighty-six".