100928857 has 4 divisors (see below), whose sum is σ = 101331216. Its totient is φ = 100526500.

The previous prime is 100928833. The next prime is 100928879. The reversal of 100928857 is 758829001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 758829001 = 7 ⋅108404143.

It is a cyclic number.

It is not a de Polignac number, because 100928857 - 2¹¹ = 100926809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100928827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200803 + ... + 201304.

It is an arithmetic number, because the mean of its divisors is an integer number (25332804).

Almost surely, 2^100928857 is an apocalyptic number.

It is an amenable number.

100928857 is a deficient number, since it is larger than the sum of its proper divisors (402359).

100928857 is an equidigital number, since it uses as much as digits as its factorization.

100928857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402358.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 100928857 is about 10046.3355010670. The cubic root of 100928857 is about 465.5915806653.

The spelling of 100928857 in words is "one hundred million, nine hundred twenty-eight thousand, eight hundred fifty-seven".