9953947 has 2 divisors, whose sum is σ = 9953948. Its totient is φ = 9953946.

The previous prime is 9953927. The next prime is 9953953. The reversal of 9953947 is 7493599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9953947 - 2¹⁵ = 9921179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9953897 and 9953906.

It is not a weakly prime, because it can be changed into another prime (9953927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976973 + 4976974.

It is an arithmetic number, because the mean of its divisors is an integer number (4976974).

Almost surely, 2^9953947 is an apocalyptic number.

9953947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953947 is an equidigital number, since it uses as much as digits as its factorization.

9953947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 46.

The square root of 9953947 is about 3154.9876386446. The cubic root of 9953947 is about 215.1122327315.

The spelling of 9953947 in words is "nine million, nine hundred fifty-three thousand, nine hundred forty-seven".