28876977 has 12 divisors (see below), whose sum is σ = 42117504. Its totient is φ = 19063800.

The previous prime is 28876963. The next prime is 28877021. The reversal of 28876977 is 77967882.

It is not a de Polignac number, because 28876977 - 2⁷ = 28876849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28876877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14649 + ... + 16502.

It is an arithmetic number, because the mean of its divisors is an integer number (3509792).

Almost surely, 2^28876977 is an apocalyptic number.

It is an amenable number.

28876977 is a deficient number, since it is larger than the sum of its proper divisors (13240527).

28876977 is a wasteful number, since it uses less digits than its factorization.

28876977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31260 (or 31257 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 28876977 is about 5373.7302686309. The cubic root of 28876977 is about 306.7966235328.

The spelling of 28876977 in words is "twenty-eight million, eight hundred seventy-six thousand, nine hundred seventy-seven".