398897211 has 12 divisors (see below), whose sum is σ = 555995048. Its totient is φ = 254368224.

The previous prime is 398897209. The next prime is 398897249. The reversal of 398897211 is 112798893.

It is not a de Polignac number, because 398897211 - 2¹ = 398897209 is a prime.

It is a super-3 number, since 3×398897211³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398897281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124090 + ... + 127263.

Almost surely, 2^398897211 is an apocalyptic number.

398897211 is a deficient number, since it is larger than the sum of its proper divisors (157097837).

398897211 is a wasteful number, since it uses less digits than its factorization.

398897211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251402 (or 251379 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 398897211 is about 19972.4112465170. The cubic root of 398897211 is about 736.1285582724.

The spelling of 398897211 in words is "three hundred ninety-eight million, eight hundred ninety-seven thousand, two hundred eleven".