398352933 has 18 divisors (see below), whose sum is σ = 632464742. Its totient is φ = 241425360.

The previous prime is 398352931. The next prime is 398352947. The reversal of 398352933 is 339253893.

It is a happy number.

398352933 is a `hidden beast` number, since 3 + 98 + 3 + 529 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 342731169 + 55621764 = 18513^2 + 7458^2 .

It is not a de Polignac number, because 398352933 - 2¹ = 398352931 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 (398352931) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 181810 + ... + 183987.

Almost surely, 2^398352933 is an apocalyptic number.

398352933 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

398352933 is a deficient number, since it is larger than the sum of its proper divisors (234111809).

398352933 is a wasteful number, since it uses less digits than its factorization.

398352933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365825 (or 365811 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The square root of 398352933 is about 19958.7808495409. The cubic root of 398352933 is about 735.7936006829.

The spelling of 398352933 in words is "three hundred ninety-eight million, three hundred fifty-two thousand, nine hundred thirty-three".