104814821 has 8 divisors (see below), whose sum is σ = 107969400. Its totient is φ = 101677248.

The previous prime is 104814799. The next prime is 104814823. The reversal of 104814821 is 128418401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72165025 + 32649796 = 8495^2 + 5714^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104814821 is a prime.

It is a super-2 number, since 2×104814821² = 21972293402524082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104814823) 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, 8855 + ... + 16971.

It is an arithmetic number, because the mean of its divisors is an integer number (13496175).

Almost surely, 2^104814821 is an apocalyptic number.

It is an amenable number.

104814821 is a deficient number, since it is larger than the sum of its proper divisors (3154579).

104814821 is an equidigital number, since it uses as much as digits as its factorization.

104814821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 104814821 is about 10237.9109685521. The cubic root of 104814821 is about 471.4918958314.

The spelling of 104814821 in words is "one hundred four million, eight hundred fourteen thousand, eight hundred twenty-one".