28977048 has 32 divisors (see below), whose sum is σ = 80492400. Its totient is φ = 9658944.

The previous prime is 28977041. The next prime is 28977049. The reversal of 28977048 is 84077982.

It is a junction number, because it is equal to n+sod(n) for n = 28976994 and 28977012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28977041) 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 in 7 ways as a sum of consecutive naturals, for example, 66861 + ... + 67292.

Almost surely, 2^28977048 is an apocalyptic number.

It is an amenable number.

28977048 is an abundant number, since it is smaller than the sum of its proper divisors (51515352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28977048 is a wasteful number, since it uses less digits than its factorization.

28977048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134168 (or 134158 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 28977048 is about 5383.0333456147. The cubic root of 28977048 is about 307.1506085144.

The spelling of 28977048 in words is "twenty-eight million, nine hundred seventy-seven thousand, forty-eight".