528877890 has 64 divisors (see below), whose sum is σ = 1413313920. Its totient is φ = 140736960.

The previous prime is 528877883. The next prime is 528877897. The reversal of 528877890 is 98778825.

It is an interprime number because it is at equal distance from previous prime (528877883) and next prime (528877897).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (528877897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145900 + ... + 149480.

It is an arithmetic number, because the mean of its divisors is an integer number (22083030).

Almost surely, 2^528877890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528877890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706656960).

528877890 is an abundant number, since it is smaller than the sum of its proper divisors (884436030).

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

528877890 is a wasteful number, since it uses less digits than its factorization.

528877890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144 (or 4138 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The square root of 528877890 is about 22997.3452815754. The cubic root of 528877890 is about 808.6957061146.

The spelling of 528877890 in words is "five hundred twenty-eight million, eight hundred seventy-seven thousand, eight hundred ninety".