5978409421 has 8 divisors (see below), whose sum is σ = 6351712920. Its totient is φ = 5616249408.

The previous prime is 5978409419. The next prime is 5978409433. The reversal of 5978409421 is 1249048795.

It can be written as a sum of positive squares in 4 ways, for example, as 2725988521 + 3252420900 = 52211^2 + 57030^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5978409421 - 2¹ = 5978409419 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 (5978409461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2784766 + ... + 2786911.

It is an arithmetic number, because the mean of its divisors is an integer number (793964115).

Almost surely, 2^5978409421 is an apocalyptic number.

It is an amenable number.

5978409421 is a deficient number, since it is larger than the sum of its proper divisors (373303499).

5978409421 is a wasteful number, since it uses less digits than its factorization.

5978409421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571743.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 5978409421 is about 77320.1747346706. The cubic root of 5978409421 is about 1814.9383795708.

The spelling of 5978409421 in words is "five billion, nine hundred seventy-eight million, four hundred nine thousand, four hundred twenty-one".