104297921 has 12 divisors (see below), whose sum is σ = 130659732. Its totient is φ = 82520928.

The previous prime is 104297917. The next prime is 104297923. The reversal of 104297921 is 129792401.

It can be written as a sum of positive squares in 2 ways, for example, as 53816896 + 50481025 = 7336^2 + 7105^2 .

It is not a de Polignac number, because 104297921 - 2² = 104297917 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104297923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81230 + ... + 82503.

It is an arithmetic number, because the mean of its divisors is an integer number (10888311).

Almost surely, 2^104297921 is an apocalyptic number.

It is an amenable number.

104297921 is a deficient number, since it is larger than the sum of its proper divisors (26361811).

104297921 is a wasteful number, since it uses less digits than its factorization.

104297921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163760 (or 163753 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 104297921 is about 10212.6353601801. The cubic root of 104297921 is about 470.7155555843.

The spelling of 104297921 in words is "one hundred four million, two hundred ninety-seven thousand, nine hundred twenty-one".