100438417 has 4 divisors (see below), whose sum is σ = 100500336. Its totient is φ = 100376500.

The previous prime is 100438381. The next prime is 100438421. The reversal of 100438417 is 714834001.

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.

It is a cyclic number.

It is not a de Polignac number, because 100438417 - 2²³ = 92049809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100438477) 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, 28459 + ... + 31792.

It is an arithmetic number, because the mean of its divisors is an integer number (25125084).

Almost surely, 2^100438417 is an apocalyptic number.

It is an amenable number.

100438417 is a deficient number, since it is larger than the sum of its proper divisors (61919).

100438417 is an equidigital number, since it uses as much as digits as its factorization.

100438417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61918.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 100438417 is about 10021.8968763403. The cubic root of 100438417 is about 464.8362116333.

The spelling of 100438417 in words is "one hundred million, four hundred thirty-eight thousand, four hundred seventeen".