100440667 has 2 divisors, whose sum is σ = 100440668. Its totient is φ = 100440666.

The previous prime is 100440653. The next prime is 100440677. The reversal of 100440667 is 766044001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100440667 - 2¹¹ = 100438619 is a prime.

It is not a weakly prime, because it can be changed into another prime (100440677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50220333 + 50220334.

It is an arithmetic number, because the mean of its divisors is an integer number (50220334).

Almost surely, 2^100440667 is an apocalyptic number.

100440667 is a deficient number, since it is larger than the sum of its proper divisors (1).

100440667 is an equidigital number, since it uses as much as digits as its factorization.

100440667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 100440667 is about 10022.0091299100. The cubic root of 100440667 is about 464.8396826613.

Adding to 100440667 its reverse (766044001), we get a palindrome (866484668).

The spelling of 100440667 in words is "one hundred million, four hundred forty thousand, six hundred sixty-seven".