28030877 has 8 divisors (see below), whose sum is σ = 32180736. Its totient is φ = 23917392.

The previous prime is 28030861. The next prime is 28030889. The reversal of 28030877 is 77803082.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28030877 - 2⁴ = 28030861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28030837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418 + ... + 10539.

It is an arithmetic number, because the mean of its divisors is an integer number (4022592).

Almost surely, 2^28030877 is an apocalyptic number.

It is an amenable number.

28030877 is a deficient number, since it is larger than the sum of its proper divisors (4149859).

28030877 is a wasteful number, since it uses less digits than its factorization.

28030877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18187.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 28030877 is about 5294.4194204842. The cubic root of 28030877 is about 303.7704761327.

The spelling of 28030877 in words is "twenty-eight million, thirty thousand, eight hundred seventy-seven".