10211947 has 2 divisors, whose sum is σ = 10211948. Its totient is φ = 10211946.

The previous prime is 10211921. The next prime is 10211953. The reversal of 10211947 is 74911201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10211947 - 2⁷ = 10211819 is a prime.

It is not a weakly prime, because it can be changed into another prime (10211147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105973 + 5105974.

It is an arithmetic number, because the mean of its divisors is an integer number (5105974).

Almost surely, 2^10211947 is an apocalyptic number.

10211947 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211947 is an equidigital number, since it uses as much as digits as its factorization.

10211947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 10211947 is about 3195.6137125754. The cubic root of 10211947 is about 216.9549270356.

It can be divided in two parts, 1021194 and 7, that added together give a palindrome (1021201).

The spelling of 10211947 in words is "ten million, two hundred eleven thousand, nine hundred forty-seven".