109921667 has 2 divisors, whose sum is σ = 109921668. Its totient is φ = 109921666.

The previous prime is 109921601. The next prime is 109921681. The reversal of 109921667 is 766129901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109921667 - 2¹⁴ = 109905283 is a prime.

It is not a weakly prime, because it can be changed into another prime (109921367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54960833 + 54960834.

It is an arithmetic number, because the mean of its divisors is an integer number (54960834).

Almost surely, 2^109921667 is an apocalyptic number.

109921667 is a deficient number, since it is larger than the sum of its proper divisors (1).

109921667 is an equidigital number, since it uses as much as digits as its factorization.

109921667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 109921667 is about 10484.3534373847. The cubic root of 109921667 is about 479.0282234581.

The spelling of 109921667 in words is "one hundred nine million, nine hundred twenty-one thousand, six hundred sixty-seven".