28877272 has 16 divisors (see below), whose sum is σ = 56012400. Its totient is φ = 13940640.

The previous prime is 28877269. The next prime is 28877273. The reversal of 28877272 is 27277882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28877273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62004 + ... + 62467.

It is an arithmetic number, because the mean of its divisors is an integer number (3500775).

Almost surely, 2^28877272 is an apocalyptic number.

It is an amenable number.

28877272 is a deficient number, since it is larger than the sum of its proper divisors (27135128).

28877272 is a wasteful number, since it uses less digits than its factorization.

28877272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124506 (or 124502 counting only the distinct ones).

The product of its digits is 175616, while the sum is 43.

The square root of 28877272 is about 5373.7577169054. The cubic root of 28877272 is about 306.7976682485.

The spelling of 28877272 in words is "twenty-eight million, eight hundred seventy-seven thousand, two hundred seventy-two".