104648643 has 24 divisors (see below), whose sum is σ = 172074240. Its totient is φ = 60664560.

The previous prime is 104648633. The next prime is 104648657. The reversal of 104648643 is 346846401.

104648643 is a `hidden beast` number, since 1 + 0 + 4 + 6 + 4 + 8 + 643 = 666.

It is not a de Polignac number, because 104648643 - 2⁸ = 104648387 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 104648598 and 104648607.

It is not an unprimeable number, because it can be changed into a prime (104648623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20703 + ... + 25256.

It is an arithmetic number, because the mean of its divisors is an integer number (7169760).

Almost surely, 2^104648643 is an apocalyptic number.

104648643 is a deficient number, since it is larger than the sum of its proper divisors (67425597).

104648643 is a wasteful number, since it uses less digits than its factorization.

104648643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45999 (or 45996 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 104648643 is about 10229.7919333680. The cubic root of 104648643 is about 471.2425894089.

It can be divided in two parts, 1046486 and 43, that added together give a square (1046529 = 1023²).

The spelling of 104648643 in words is "one hundred four million, six hundred forty-eight thousand, six hundred forty-three".