28877822 has 8 divisors (see below), whose sum is σ = 43339536. Its totient is φ = 14431312.

The previous prime is 28877809. The next prime is 28877843. The reversal of 28877822 is 22877882.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5618 + ... + 9450.

It is an arithmetic number, because the mean of its divisors is an integer number (5417442).

Almost surely, 2^28877822 is an apocalyptic number.

28877822 is a deficient number, since it is larger than the sum of its proper divisors (14461714).

28877822 is a wasteful number, since it uses less digits than its factorization.

28877822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602.

The product of its digits is 200704, while the sum is 44.

The square root of 28877822 is about 5373.8088912800. The cubic root of 28877822 is about 306.7996160046.

The spelling of 28877822 in words is "twenty-eight million, eight hundred seventy-seven thousand, eight hundred twenty-two".