5393989021 has 8 divisors (see below), whose sum is σ = 5682588320. Its totient is φ = 5105860272.

The previous prime is 5393988979. The next prime is 5393989031. The reversal of 5393989021 is 1209893935.

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

It is not a de Polignac number, because 5393989021 - 2¹⁹ = 5393464733 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 (5393989031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93975 + ... + 140068.

It is an arithmetic number, because the mean of its divisors is an integer number (710323540).

Almost surely, 2^5393989021 is an apocalyptic number.

It is an amenable number.

5393989021 is a deficient number, since it is larger than the sum of its proper divisors (288599299).

5393989021 is a wasteful number, since it uses less digits than its factorization.

5393989021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235275.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 5393989021 is about 73443.7813637070. The cubic root of 5393989021 is about 1753.7594305249.

The spelling of 5393989021 in words is "five billion, three hundred ninety-three million, nine hundred eighty-nine thousand, twenty-one".