101870928 has 30 divisors (see below), whose sum is σ = 285097514. Its totient is φ = 33956928.

The previous prime is 101870927. The next prime is 101870947. The reversal of 101870928 is 829078101.

It can be written as a sum of positive squares in only one way, i.e., 100160064 + 1710864 = 10008^2 + 1308^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 101870892 and 101870901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101870927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 353575 + ... + 353862.

Almost surely, 2^101870928 is an apocalyptic number.

101870928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

101870928 is an abundant number, since it is smaller than the sum of its proper divisors (183226586).

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

101870928 is a wasteful number, since it uses less digits than its factorization.

101870928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707451 (or 707442 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 101870928 is about 10093.1128993983. The cubic root of 101870928 is about 467.0357089896.

The spelling of 101870928 in words is "one hundred one million, eight hundred seventy thousand, nine hundred twenty-eight".