104989605 has 48 divisors (see below), whose sum is σ = 197878464. Its totient is φ = 47389440.

The previous prime is 104989597. The next prime is 104989631. The reversal of 104989605 is 506989401.

It is not a de Polignac number, because 104989605 - 2³ = 104989597 is a prime.

It is a super-2 number, since 2×104989605² = 22045634316112050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60145 + ... + 61865.

It is an arithmetic number, because the mean of its divisors is an integer number (4122468).

Almost surely, 2^104989605 is an apocalyptic number.

104989605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104989605 is a deficient number, since it is larger than the sum of its proper divisors (92888859).

104989605 is a wasteful number, since it uses less digits than its factorization.

104989605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 104989605 is about 10246.4435293423. The cubic root of 104989605 is about 471.7538291277.

The spelling of 104989605 in words is "one hundred four million, nine hundred eighty-nine thousand, six hundred five".