109869407 has 2 divisors, whose sum is σ = 109869408. Its totient is φ = 109869406.

The previous prime is 109869401. The next prime is 109869427. The reversal of 109869407 is 704968901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109869407 - 2¹⁸ = 109607263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109869401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54934703 + 54934704.

It is an arithmetic number, because the mean of its divisors is an integer number (54934704).

Almost surely, 2^109869407 is an apocalyptic number.

109869407 is a deficient number, since it is larger than the sum of its proper divisors (1).

109869407 is an equidigital number, since it uses as much as digits as its factorization.

109869407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 109869407 is about 10481.8608557832. The cubic root of 109869407 is about 478.9522967125.

The spelling of 109869407 in words is "one hundred nine million, eight hundred sixty-nine thousand, four hundred seven".