28853780 has 24 divisors (see below), whose sum is σ = 63782880. Its totient is φ = 10933920.

The previous prime is 28853767. The next prime is 28853789. The reversal of 28853780 is 8735882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28853789) 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, 37586 + ... + 38345.

It is an arithmetic number, because the mean of its divisors is an integer number (2657620).

Almost surely, 2^28853780 is an apocalyptic number.

28853780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28853780 is an abundant number, since it is smaller than the sum of its proper divisors (34929100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28853780 is a wasteful number, since it uses less digits than its factorization.

28853780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75959 (or 75957 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 28853780 is about 5371.5714646647. The cubic root of 28853780 is about 306.7144511760.

The spelling of 28853780 in words is "twenty-eight million, eight hundred fifty-three thousand, seven hundred eighty".