100395921 has 8 divisors (see below), whose sum is σ = 137126304. Its totient is φ = 65298080.

The previous prime is 100395907. The next prime is 100395923. The reversal of 100395921 is 129593001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100395921 - 2⁶ = 100395857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100395923) 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, 407991 + ... + 408236.

It is an arithmetic number, because the mean of its divisors is an integer number (17140788).

Almost surely, 2^100395921 is an apocalyptic number.

It is an amenable number.

100395921 is a deficient number, since it is larger than the sum of its proper divisors (36730383).

100395921 is an equidigital number, since it uses as much as digits as its factorization.

100395921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816271.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 100395921 is about 10019.7764945132. The cubic root of 100395921 is about 464.7706442045.

The spelling of 100395921 in words is "one hundred million, three hundred ninety-five thousand, nine hundred twenty-one".