28877950 has 12 divisors (see below), whose sum is σ = 53713080. Its totient is φ = 11551160.

The previous prime is 28877911. The next prime is 28877969. The reversal of 28877950 is 5977882.

It is a self number, because there is not a number n which added to its sum of digits gives 28877950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288730 + ... + 288829.

It is an arithmetic number, because the mean of its divisors is an integer number (4476090).

Almost surely, 2^28877950 is an apocalyptic number.

28877950 is a deficient number, since it is larger than the sum of its proper divisors (24835130).

28877950 is a wasteful number, since it uses less digits than its factorization.

28877950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577571 (or 577566 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 28877950 is about 5373.8208008827. The cubic root of 28877950 is about 306.8000692970.

The spelling of 28877950 in words is "twenty-eight million, eight hundred seventy-seven thousand, nine hundred fifty".