104658639 has 8 divisors (see below), whose sum is σ = 140825520. Its totient is φ = 69132096.

The previous prime is 104658637. The next prime is 104658649. The reversal of 104658639 is 936856401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104658639 - 2¹ = 104658637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104658639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104658637) 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, 159702 + ... + 160355.

It is an arithmetic number, because the mean of its divisors is an integer number (17603190).

Almost surely, 2^104658639 is an apocalyptic number.

104658639 is a deficient number, since it is larger than the sum of its proper divisors (36166881).

104658639 is a wasteful number, since it uses less digits than its factorization.

104658639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320169.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 104658639 is about 10230.2804946883. The cubic root of 104658639 is about 471.2575932377.

It can be divided in two parts, 1046 and 58639, that added together give a triangular number (59685 = T₃₄₅).

The spelling of 104658639 in words is "one hundred four million, six hundred fifty-eight thousand, six hundred thirty-nine".