100426439 has 2 divisors, whose sum is σ = 100426440. Its totient is φ = 100426438.

The previous prime is 100426433. The next prime is 100426471. The reversal of 100426439 is 934624001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100426439 - 2⁴ = 100426423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100426433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50213219 + 50213220.

It is an arithmetic number, because the mean of its divisors is an integer number (50213220).

Almost surely, 2^100426439 is an apocalyptic number.

100426439 is a deficient number, since it is larger than the sum of its proper divisors (1).

100426439 is an equidigital number, since it uses as much as digits as its factorization.

100426439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 100426439 is about 10021.2992670611. The cubic root of 100426439 is about 464.8177325505.

The spelling of 100426439 in words is "one hundred million, four hundred twenty-six thousand, four hundred thirty-nine".