354198389 has 4 divisors (see below), whose sum is σ = 354239424. Its totient is φ = 354157356.

The previous prime is 354198379. The next prime is 354198401. The reversal of 354198389 is 983891453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 354198389 - 2¹⁶ = 354132853 is a prime.

It is a super-3 number, since 3×354198389³ (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 (354198319) 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, 1997 + ... + 26690.

It is an arithmetic number, because the mean of its divisors is an integer number (88559856).

Almost surely, 2^354198389 is an apocalyptic number.

It is an amenable number.

354198389 is a deficient number, since it is larger than the sum of its proper divisors (41035).

354198389 is a wasteful number, since it uses less digits than its factorization.

354198389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41034.

The product of its digits is 933120, while the sum is 50.

The square root of 354198389 is about 18820.1591119735. The cubic root of 354198389 is about 707.5365189023.

The spelling of 354198389 in words is "three hundred fifty-four million, one hundred ninety-eight thousand, three hundred eighty-nine".