102904 has 16 divisors (see below), whose sum is σ = 203400. Its totient is φ = 48672.

The previous prime is 102881. The next prime is 102911. The reversal of 102904 is 409201.

102904 = T₄₀ + T₄₁ + ... + T₈₇.

It is a congruent number.

It is an unprimeable number.

102904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187 + ... + 490.

2¹⁰²⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

102904 is a deficient number, since it is larger than the sum of its proper divisors (100496).

102904 is a wasteful number, since it uses less digits than its factorization.

102904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 102904 is about 320.7865333832. The cubic root of 102904 is about 46.8609136933.

The spelling of 102904 in words is "one hundred two thousand, nine hundred four".