100404247 has 2 divisors, whose sum is σ = 100404248. Its totient is φ = 100404246.

The previous prime is 100404221. The next prime is 100404259. The reversal of 100404247 is 742404001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100404247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100404217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50202123 + 50202124.

It is an arithmetic number, because the mean of its divisors is an integer number (50202124).

Almost surely, 2^100404247 is an apocalyptic number.

100404247 is a deficient number, since it is larger than the sum of its proper divisors (1).

100404247 is an equidigital number, since it uses as much as digits as its factorization.

100404247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 100404247 is about 10020.1919642290. The cubic root of 100404247 is about 464.7834919158.

Adding to 100404247 its reverse (742404001), we get a palindrome (842808248).

The spelling of 100404247 in words is "one hundred million, four hundred four thousand, two hundred forty-seven".