107232821 has 8 divisors (see below), whose sum is σ = 114712920. Its totient is φ = 99883008.

The previous prime is 107232817. The next prime is 107232869. The reversal of 107232821 is 128232701.

It can be written as a sum of positive squares in 4 ways, for example, as 65772100 + 41460721 = 8110^2 + 6439^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 107232821 - 2² = 107232817 is a prime.

It is a super-2 number, since 2×107232821² = 22997755799236082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107232121) 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, 30866 + ... + 34163.

It is an arithmetic number, because the mean of its divisors is an integer number (14339115).

Almost surely, 2^107232821 is an apocalyptic number.

It is an amenable number.

107232821 is a deficient number, since it is larger than the sum of its proper divisors (7480099).

107232821 is an equidigital number, since it uses as much as digits as its factorization.

107232821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65143.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 107232821 is about 10355.3281454525. The cubic root of 107232821 is about 475.0900231960.

The spelling of 107232821 in words is "one hundred seven million, two hundred thirty-two thousand, eight hundred twenty-one".