105698947 has 2 divisors, whose sum is σ = 105698948. Its totient is φ = 105698946.

The previous prime is 105698921. The next prime is 105699001. The reversal of 105698947 is 749896501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105698947 is a prime.

It is a super-2 number, since 2×105698947² = 22344534793817618, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 105698947.

It is not a weakly prime, because it can be changed into another prime (105698147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52849473 + 52849474.

It is an arithmetic number, because the mean of its divisors is an integer number (52849474).

Almost surely, 2^105698947 is an apocalyptic number.

105698947 is a deficient number, since it is larger than the sum of its proper divisors (1).

105698947 is an equidigital number, since it uses as much as digits as its factorization.

105698947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 105698947 is about 10280.9993191324. Note that the first 3 decimals coincide. The cubic root of 105698947 is about 472.8138832443.

The spelling of 105698947 in words is "one hundred five million, six hundred ninety-eight thousand, nine hundred forty-seven".