398011197 has 8 divisors (see below), whose sum is σ = 530854240. Its totient is φ = 265254480.

The previous prime is 398011193. The next prime is 398011223. The reversal of 398011197 is 791110893.

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

It is not a de Polignac number, because 398011197 - 2² = 398011193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398011193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9922 + ... + 29907.

It is an arithmetic number, because the mean of its divisors is an integer number (66356780).

Almost surely, 2^398011197 is an apocalyptic number.

It is an amenable number.

398011197 is a deficient number, since it is larger than the sum of its proper divisors (132843043).

398011197 is a wasteful number, since it uses less digits than its factorization.

398011197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43163.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 398011197 is about 19950.2179687341. The cubic root of 398011197 is about 735.5831348048.

The spelling of 398011197 in words is "three hundred ninety-eight million, eleven thousand, one hundred ninety-seven".