2798513939 has 8 divisors (see below), whose sum is σ = 3191065920. Its totient is φ = 2431287936.

The previous prime is 2798513929. The next prime is 2798513941. The reversal of 2798513939 is 9393158972.

It is a happy number.

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-2798513939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2798513909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6331259 + ... + 6331700.

It is an arithmetic number, because the mean of its divisors is an integer number (398883240).

Almost surely, 2^2798513939 is an apocalyptic number.

2798513939 is a deficient number, since it is larger than the sum of its proper divisors (392551981).

2798513939 is a wasteful number, since it uses less digits than its factorization.

2798513939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12662989.

The product of its digits is 3674160, while the sum is 56.

The square root of 2798513939 is about 52900.9824010859. The cubic root of 2798513939 is about 1409.2103519107.

The spelling of 2798513939 in words is "two billion, seven hundred ninety-eight million, five hundred thirteen thousand, nine hundred thirty-nine".