100869028 has 24 divisors (see below), whose sum is σ = 190423800. Its totient is φ = 46475520.

The previous prime is 100869023. The next prime is 100869029. The reversal of 100869028 is 820968001.

It can be written as a sum of positive squares in 4 ways, for example, as 708964 + 100160064 = 842^2 + 10008^2 .

It is a super-3 number, since 3×100869028³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100868984 and 100869002.

It is not an unprimeable number, because it can be changed into a prime (100869023) 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, 38298 + ... + 40846.

It is an arithmetic number, because the mean of its divisors is an integer number (7934325).

Almost surely, 2^100869028 is an apocalyptic number.

It is an amenable number.

100869028 is a deficient number, since it is larger than the sum of its proper divisors (89554772).

100869028 is a wasteful number, since it uses less digits than its factorization.

100869028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327 (or 3325 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 100869028 is about 10043.3574067639. The cubic root of 100869028 is about 465.4995640855.

The spelling of 100869028 in words is "one hundred million, eight hundred sixty-nine thousand, twenty-eight".