28607071 has 2 divisors, whose sum is σ = 28607072. Its totient is φ = 28607070.

The previous prime is 28607063. The next prime is 28607077. The reversal of 28607071 is 17070682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28607071 - 2³ = 28607063 is a prime.

It is a super-2 number, since 2×28607071² = 1636729022398082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28607077) 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 as a sum of consecutive naturals, namely, 14303535 + 14303536.

It is an arithmetic number, because the mean of its divisors is an integer number (14303536).

Almost surely, 2^28607071 is an apocalyptic number.

28607071 is a deficient number, since it is larger than the sum of its proper divisors (1).

28607071 is an equidigital number, since it uses as much as digits as its factorization.

28607071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 28607071 is about 5348.5578430078. The cubic root of 28607071 is about 305.8377790826.

The spelling of 28607071 in words is "twenty-eight million, six hundred seven thousand, seventy-one".