102839933 has 4 divisors (see below), whose sum is σ = 117531360. Its totient is φ = 88148508.

The previous prime is 102839911. The next prime is 102839941. The reversal of 102839933 is 339938201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 339938201 = 6361 ⋅53441.

It is a de Polignac number, because none of the positive numbers 2^k-102839933 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 (102839903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7345703 + ... + 7345716.

It is an arithmetic number, because the mean of its divisors is an integer number (29382840).

Almost surely, 2^102839933 is an apocalyptic number.

It is an amenable number.

102839933 is a deficient number, since it is larger than the sum of its proper divisors (14691427).

102839933 is an equidigital number, since it uses as much as digits as its factorization.

102839933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14691426.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 102839933 is about 10141.0025638494. The cubic root of 102839933 is about 468.5118662915.

The spelling of 102839933 in words is "one hundred two million, eight hundred thirty-nine thousand, nine hundred thirty-three".