100870928 has 40 divisors (see below), whose sum is σ = 207986688. Its totient is φ = 47227392.

The previous prime is 100870927. The next prime is 100870963. The reversal of 100870928 is 829078001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100870921) 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, 59825 + ... + 61487.

Almost surely, 2^100870928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100870928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103993344).

100870928 is an abundant number, since it is smaller than the sum of its proper divisors (107115760).

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

100870928 is a wasteful number, since it uses less digits than its factorization.

100870928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 100870928 is about 10043.4519962013. The cubic root of 100870928 is about 465.5024868314.

The spelling of 100870928 in words is "one hundred million, eight hundred seventy thousand, nine hundred twenty-eight".