105089947 has 2 divisors, whose sum is σ = 105089948. Its totient is φ = 105089946.

The previous prime is 105089923. The next prime is 105089951. The reversal of 105089947 is 749980501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105089947 - 2⁷ = 105089819 is a prime.

It is a super-2 number, since 2×105089947² = 22087793920925618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105089917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52544973 + 52544974.

It is an arithmetic number, because the mean of its divisors is an integer number (52544974).

Almost surely, 2^105089947 is an apocalyptic number.

105089947 is a deficient number, since it is larger than the sum of its proper divisors (1).

105089947 is an equidigital number, since it uses as much as digits as its factorization.

105089947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 105089947 is about 10251.3387906166. The cubic root of 105089947 is about 471.9040714630.

The spelling of 105089947 in words is "one hundred five million, eighty-nine thousand, nine hundred forty-seven".