103204989 has 8 divisors (see below), whose sum is σ = 152896320. Its totient is φ = 68803308.

The previous prime is 103204967. The next prime is 103205021. The reversal of 103204989 is 989402301.

It is not a de Polignac number, because 103204989 - 2⁹ = 103204477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103204919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911177 + ... + 1911230.

It is an arithmetic number, because the mean of its divisors is an integer number (19112040).

Almost surely, 2^103204989 is an apocalyptic number.

It is an amenable number.

103204989 is a deficient number, since it is larger than the sum of its proper divisors (49691331).

103204989 is an equidigital number, since it uses as much as digits as its factorization.

103204989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822416 (or 3822410 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 103204989 is about 10158.9856284966. The cubic root of 103204989 is about 469.0655782145.

The spelling of 103204989 in words is "one hundred three million, two hundred four thousand, nine hundred eighty-nine".