543408397 has 8 divisors (see below), whose sum is σ = 624629376. Its totient is φ = 463085232.

The previous prime is 543408361. The next prime is 543408401. The reversal of 543408397 is 793804345.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543408397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543408317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223153 + ... + 225574.

It is an arithmetic number, because the mean of its divisors is an integer number (78078672).

Almost surely, 2^543408397 is an apocalyptic number.

It is an amenable number.

543408397 is a deficient number, since it is larger than the sum of its proper divisors (81220979).

543408397 is a wasteful number, since it uses less digits than its factorization.

543408397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448907.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 543408397 is about 23311.1217447810. The cubic root of 543408397 is about 816.0349915510.

The spelling of 543408397 in words is "five hundred forty-three million, four hundred eight thousand, three hundred ninety-seven".