2839663493 has 8 divisors (see below), whose sum is σ = 3016193112. Its totient is φ = 2664188416.

The previous prime is 2839663483. The next prime is 2839663517. The reversal of 2839663493 is 3943669382.

It can be written as a sum of positive squares in 4 ways, for example, as 13890529 + 2825772964 = 3727^2 + 53158^2 .

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-2839663493 is a prime.

It is a super-2 number, since 2×2839663493² = 16127377506953922098, which contains 22 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 (2839663483) 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, 258080 + ... + 268857.

It is an arithmetic number, because the mean of its divisors is an integer number (377024139).

Almost surely, 2^2839663493 is an apocalyptic number.

It is an amenable number.

2839663493 is a deficient number, since it is larger than the sum of its proper divisors (176529619).

2839663493 is a wasteful number, since it uses less digits than its factorization.

2839663493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527271.

The product of its digits is 5038848, while the sum is 53.

The square root of 2839663493 is about 53288.4930637000. The cubic root of 2839663493 is about 1416.0838159727.

The spelling of 2839663493 in words is "two billion, eight hundred thirty-nine million, six hundred sixty-three thousand, four hundred ninety-three".