100823943 has 16 divisors (see below), whose sum is σ = 147223296. Its totient is φ = 60867840.

The previous prime is 100823941. The next prime is 100823963. The reversal of 100823943 is 349328001.

It is not a de Polignac number, because 100823943 - 2¹ = 100823941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100823943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100823941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2871 + ... + 14487.

It is an arithmetic number, because the mean of its divisors is an integer number (9201456).

Almost surely, 2^100823943 is an apocalyptic number.

100823943 is a deficient number, since it is larger than the sum of its proper divisors (46399353).

100823943 is a wasteful number, since it uses less digits than its factorization.

100823943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11894.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 100823943 is about 10041.1126375517. The cubic root of 100823943 is about 465.4301996305.

The spelling of 100823943 in words is "one hundred million, eight hundred twenty-three thousand, nine hundred forty-three".