28671527 has 2 divisors, whose sum is σ = 28671528. Its totient is φ = 28671526.

The previous prime is 28671523. The next prime is 28671557. The reversal of 28671527 is 72517682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28671527 - 2² = 28671523 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28671521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14335763 + 14335764.

It is an arithmetic number, because the mean of its divisors is an integer number (14335764).

Almost surely, 2^28671527 is an apocalyptic number.

28671527 is a deficient number, since it is larger than the sum of its proper divisors (1).

28671527 is an equidigital number, since it uses as much as digits as its factorization.

28671527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 28671527 is about 5354.5800022037. The cubic root of 28671527 is about 306.0673061680.

The spelling of 28671527 in words is "twenty-eight million, six hundred seventy-one thousand, five hundred twenty-seven".