10091947 has 2 divisors, whose sum is σ = 10091948. Its totient is φ = 10091946.

The previous prime is 10091933. The next prime is 10091953. The reversal of 10091947 is 74919001.

It is a strong prime.

It is an emirp because it is prime and its reverse (74919001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10091947 - 2¹¹ = 10089899 is a prime.

It is not a weakly prime, because it can be changed into another prime (10091927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5045973 + 5045974.

It is an arithmetic number, because the mean of its divisors is an integer number (5045974).

Almost surely, 2^10091947 is an apocalyptic number.

10091947 is a deficient number, since it is larger than the sum of its proper divisors (1).

10091947 is an equidigital number, since it uses as much as digits as its factorization.

10091947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 10091947 is about 3176.7824917674. The cubic root of 10091947 is about 216.1017681739.

The spelling of 10091947 in words is "ten million, ninety-one thousand, nine hundred forty-seven".