28877882 has 16 divisors (see below), whose sum is σ = 47486304. Its totient is φ = 13062000.

The previous prime is 28877873. The next prime is 28877887.

It is a happy number.

28877882 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 28877882.

It is not an unprimeable number, because it can be changed into a prime (28877887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (2967894).

Almost surely, 2^28877882 is an apocalyptic number.

28877882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28877882 is a deficient number, since it is larger than the sum of its proper divisors (18608422).

28877882 is a wasteful number, since it uses less digits than its factorization.

28877882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445.

The product of its digits is 802816, while the sum is 50.

The square root of 28877882 is about 5373.8144739096. The cubic root of 28877882 is about 306.7998284856.

The spelling of 28877882 in words is "twenty-eight million, eight hundred seventy-seven thousand, eight hundred eighty-two".