105589691 has 2 divisors, whose sum is σ = 105589692. Its totient is φ = 105589690.

The previous prime is 105589663. The next prime is 105589697. The reversal of 105589691 is 196985501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105589691 - 2²² = 101395387 is a prime.

It is a super-2 number, since 2×105589691² = 22298365690950962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105589697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52794845 + 52794846.

It is an arithmetic number, because the mean of its divisors is an integer number (52794846).

Almost surely, 2^105589691 is an apocalyptic number.

105589691 is a deficient number, since it is larger than the sum of its proper divisors (1).

105589691 is an equidigital number, since it uses as much as digits as its factorization.

105589691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 44.

The square root of 105589691 is about 10275.6844540887. The cubic root of 105589691 is about 472.6509186357.

The spelling of 105589691 in words is "one hundred five million, five hundred eighty-nine thousand, six hundred ninety-one".