104621517 has 128 divisors (see below), whose sum is σ = 215040000. Its totient is φ = 49533120.

The previous prime is 104621507. The next prime is 104621521. The reversal of 104621517 is 715126401.

It is a happy number.

It is not a de Polignac number, because 104621517 - 2⁴ = 104621501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104621507) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1324284 + ... + 1324362.

It is an arithmetic number, because the mean of its divisors is an integer number (1680000).

Almost surely, 2^104621517 is an apocalyptic number.

It is an amenable number.

104621517 is an abundant number, since it is smaller than the sum of its proper divisors (110418483).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104621517 is a wasteful number, since it uses less digits than its factorization.

104621517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 104621517 is about 10228.4660140218. The cubic root of 104621517 is about 471.2018689219.

Adding to 104621517 its reverse (715126401), we get a palindrome (819747918).

The spelling of 104621517 in words is "one hundred four million, six hundred twenty-one thousand, five hundred seventeen".