107842821 has 8 divisors (see below), whose sum is σ = 145610880. Its totient is φ = 70984992.

The previous prime is 107842817. The next prime is 107842843. The reversal of 107842821 is 128248701.

It is a happy number.

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

It is not a de Polignac number, because 107842821 - 2² = 107842817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107842871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227280 + ... + 227753.

It is an arithmetic number, because the mean of its divisors is an integer number (18201360).

Almost surely, 2^107842821 is an apocalyptic number.

It is an amenable number.

107842821 is a deficient number, since it is larger than the sum of its proper divisors (37768059).

107842821 is an equidigital number, since it uses as much as digits as its factorization.

107842821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455115.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 107842821 is about 10384.7398137845. The cubic root of 107842821 is about 475.9891792493.

The spelling of 107842821 in words is "one hundred seven million, eight hundred forty-two thousand, eight hundred twenty-one".