28606977 has 12 divisors (see below), whose sum is σ = 47224320. Its totient is φ = 16346808.

The previous prime is 28606943. The next prime is 28606993. The reversal of 28606977 is 77960682.

It is a happy number.

28606977 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 28606977 - 2⁷ = 28606849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28606177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226977 + ... + 227102.

It is an arithmetic number, because the mean of its divisors is an integer number (3935360).

Almost surely, 2^28606977 is an apocalyptic number.

It is an amenable number.

28606977 is a deficient number, since it is larger than the sum of its proper divisors (18617343).

28606977 is a wasteful number, since it uses less digits than its factorization.

28606977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454092 (or 454089 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 28606977 is about 5348.5490555851. The cubic root of 28606977 is about 305.8374440980.

It can be divided in two parts, 286069 and 77, that added together give a triangular number (286146 = T₇₅₆).

The spelling of 28606977 in words is "twenty-eight million, six hundred six thousand, nine hundred seventy-seven".