103093821 has 12 divisors (see below), whose sum is σ = 149001372. Its totient is φ = 68688576.

The previous prime is 103093819. The next prime is 103093841. The reversal of 103093821 is 128390301.

It can be written as a sum of positive squares in 2 ways, for example, as 94361796 + 8732025 = 9714^2 + 2955^2 .

It is not a de Polignac number, because 103093821 - 2¹ = 103093819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103093801) 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 11 ways as a sum of consecutive naturals, for example, 27555 + ... + 31071.

It is an arithmetic number, because the mean of its divisors is an integer number (12416781).

Almost surely, 2^103093821 is an apocalyptic number.

It is an amenable number.

103093821 is a deficient number, since it is larger than the sum of its proper divisors (45907551).

103093821 is a wasteful number, since it uses less digits than its factorization.

103093821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780 (or 6777 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 103093821 is about 10153.5127419037. The cubic root of 103093821 is about 468.8970985808.

The spelling of 103093821 in words is "one hundred three million, ninety-three thousand, eight hundred twenty-one".