2839948657 has 64 divisors (see below), whose sum is σ = 3726213120. Its totient is φ = 2104704000.

The previous prime is 2839948589. The next prime is 2839948669. The reversal of 2839948657 is 7568499382.

It is not a de Polignac number, because 2839948657 - 2¹¹ = 2839946609 is a prime.

It is a super-2 number, since 2×2839948657² = 16130616748792207298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2839948595 and 2839948604.

It is not an unprimeable number, because it can be changed into a prime (2839948157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18807532 + ... + 18807682.

It is an arithmetic number, because the mean of its divisors is an integer number (58222080).

Almost surely, 2^2839948657 is an apocalyptic number.

It is an amenable number.

2839948657 is a deficient number, since it is larger than the sum of its proper divisors (886264463).

2839948657 is a wasteful number, since it uses less digits than its factorization.

2839948657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its digits is 26127360, while the sum is 61.

The square root of 2839948657 is about 53291.1686586061. The cubic root of 2839948657 is about 1416.1312162614.

The spelling of 2839948657 in words is "two billion, eight hundred thirty-nine million, nine hundred forty-eight thousand, six hundred fifty-seven".