398873475 has 324 divisors, whose sum is σ = 1026528048. Its totient is φ = 146361600.

The previous prime is 398873473. The next prime is 398873491. The reversal of 398873475 is 574378893.

398873475 is a `hidden beast` number, since 3 + 98 + 87 + 3 + 475 = 666.

It is not a de Polignac number, because 398873475 - 2¹ = 398873473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398873473) by changing a digit.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 17342314 + ... + 17342336.

Almost surely, 2^398873475 is an apocalyptic number.

398873475 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

398873475 is an abundant number, since it is smaller than the sum of its proper divisors (627654573).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398873475 is a wasteful number, since it uses less digits than its factorization.

398873475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 62 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 398873475 is about 19971.8170179881. The cubic root of 398873475 is about 736.1139571057.

The spelling of 398873475 in words is "three hundred ninety-eight million, eight hundred seventy-three thousand, four hundred seventy-five".