102728213 has 8 divisors (see below), whose sum is σ = 118108032. Its totient is φ = 87524496.

The previous prime is 102728207. The next prime is 102728221. The reversal of 102728213 is 312827201.

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 102728213 - 2¹⁰ = 102727189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102728273) 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, 42770 + ... + 45107.

It is an arithmetic number, because the mean of its divisors is an integer number (14763504).

Almost surely, 2^102728213 is an apocalyptic number.

It is an amenable number.

102728213 is a deficient number, since it is larger than the sum of its proper divisors (15379819).

102728213 is an equidigital number, since it uses as much as digits as its factorization.

102728213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88051.

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

The square root of 102728213 is about 10135.4927359256. The cubic root of 102728213 is about 468.3421491089.

The spelling of 102728213 in words is "one hundred two million, seven hundred twenty-eight thousand, two hundred thirteen".