978044543 has 4 divisors (see below), whose sum is σ = 1117765200. Its totient is φ = 838323888.

The previous prime is 978044539. The next prime is 978044549. The reversal of 978044543 is 345440879.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 978044543 - 2² = 978044539 is a prime.

It is a super-2 number, since 2×978044543² = 1913142256184157698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 978044494 and 978044503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978044549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69860318 + ... + 69860331.

It is an arithmetic number, because the mean of its divisors is an integer number (279441300).

Almost surely, 2^978044543 is an apocalyptic number.

978044543 is a deficient number, since it is larger than the sum of its proper divisors (139720657).

978044543 is a wasteful number, since it uses less digits than its factorization.

978044543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139720656.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 978044543 is about 31273.7036981551. The cubic root of 978044543 is about 992.6272910823.

The spelling of 978044543 in words is "nine hundred seventy-eight million, forty-four thousand, five hundred forty-three".