239896849 has 4 divisors (see below), whose sum is σ = 240187060. Its totient is φ = 239606640.

The previous prime is 239896841. The next prime is 239896897. The reversal of 239896849 is 948698932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189557824 + 50339025 = 13768^2 + 7095^2 .

It is a cyclic number.

It is not a de Polignac number, because 239896849 - 2³ = 239896841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239896793 and 239896802.

It is not an unprimeable number, because it can be changed into a prime (239896841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143862 + ... + 145519.

It is an arithmetic number, because the mean of its divisors is an integer number (60046765).

Almost surely, 2^239896849 is an apocalyptic number.

It is an amenable number.

239896849 is a deficient number, since it is larger than the sum of its proper divisors (290211).

239896849 is an equidigital number, since it uses as much as digits as its factorization.

239896849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290210.

The product of its digits is 6718464, while the sum is 58.

The square root of 239896849 is about 15488.6038428259. The cubic root of 239896849 is about 621.3574567270.

The spelling of 239896849 in words is "two hundred thirty-nine million, eight hundred ninety-six thousand, eight hundred forty-nine".