28136707 has 2 divisors, whose sum is σ = 28136708. Its totient is φ = 28136706.

The previous prime is 28136653. The next prime is 28136711. The reversal of 28136707 is 70763182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28136707 - 2¹⁹ = 27612419 is a prime.

It is not a weakly prime, because it can be changed into another prime (28136737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14068353 + 14068354.

It is an arithmetic number, because the mean of its divisors is an integer number (14068354).

Almost surely, 2^28136707 is an apocalyptic number.

28136707 is a deficient number, since it is larger than the sum of its proper divisors (1).

28136707 is an equidigital number, since it uses as much as digits as its factorization.

28136707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 28136707 is about 5304.4044906097. The cubic root of 28136707 is about 304.1522890892.

Adding to 28136707 its reverse (70763182), we get a palindrome (98899889).

The spelling of 28136707 in words is "twenty-eight million, one hundred thirty-six thousand, seven hundred seven".