28606971 has 16 divisors (see below), whose sum is σ = 41374368. Its totient is φ = 17510400.

The previous prime is 28606943. The next prime is 28606993. The reversal of 28606971 is 17960682.

It is not a de Polignac number, because 28606971 - 2⁷ = 28606843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28606471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4750 + ... + 8931.

It is an arithmetic number, because the mean of its divisors is an integer number (2585898).

Almost surely, 2^28606971 is an apocalyptic number.

28606971 is a deficient number, since it is larger than the sum of its proper divisors (12767397).

28606971 is a wasteful number, since it uses less digits than its factorization.

28606971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13742.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 28606971 is about 5348.5484946853. The cubic root of 28606971 is about 305.8374227160.

The spelling of 28606971 in words is "twenty-eight million, six hundred six thousand, nine hundred seventy-one".