100043407 has 4 divisors (see below), whose sum is σ = 100077016. Its totient is φ = 100009800.

The previous prime is 100043393. The next prime is 100043423. The reversal of 100043407 is 704340001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704340001 = 1723 ⋅408787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100043407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100043497) 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, 11853 + ... + 18454.

It is an arithmetic number, because the mean of its divisors is an integer number (25019254).

Almost surely, 2^100043407 is an apocalyptic number.

100043407 is a deficient number, since it is larger than the sum of its proper divisors (33609).

100043407 is an equidigital number, since it uses as much as digits as its factorization.

100043407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33608.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 100043407 is about 10002.1701145301. The cubic root of 100043407 is about 464.2260327952.

Adding to 100043407 its reverse (704340001), we get a palindrome (804383408).

The spelling of 100043407 in words is "one hundred million, forty-three thousand, four hundred seven".