109857967 has 2 divisors, whose sum is σ = 109857968. Its totient is φ = 109857966.

The previous prime is 109857929. The next prime is 109857989. The reversal of 109857967 is 769758901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109857967 - 2¹¹ = 109855919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109857997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54928983 + 54928984.

It is an arithmetic number, because the mean of its divisors is an integer number (54928984).

Almost surely, 2^109857967 is an apocalyptic number.

109857967 is a deficient number, since it is larger than the sum of its proper divisors (1).

109857967 is an equidigital number, since it uses as much as digits as its factorization.

109857967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 109857967 is about 10481.3151369473. The cubic root of 109857967 is about 478.9356727205.

The spelling of 109857967 in words is "one hundred nine million, eight hundred fifty-seven thousand, nine hundred sixty-seven".