28103347 has 2 divisors, whose sum is σ = 28103348. Its totient is φ = 28103346.

The previous prime is 28103323. The next prime is 28103353. The reversal of 28103347 is 74330182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28103347 - 2¹¹ = 28101299 is a prime.

It is a super-2 number, since 2×28103347² = 1579596225204818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28103357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14051673 + 14051674.

It is an arithmetic number, because the mean of its divisors is an integer number (14051674).

Almost surely, 2^28103347 is an apocalyptic number.

28103347 is a deficient number, since it is larger than the sum of its proper divisors (1).

28103347 is an equidigital number, since it uses as much as digits as its factorization.

28103347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 28103347 is about 5301.2590014071. The cubic root of 28103347 is about 304.0320365303.

The spelling of 28103347 in words is "twenty-eight million, one hundred three thousand, three hundred forty-seven".