971406853 has 2 divisors, whose sum is σ = 971406854. Its totient is φ = 971406852.

The previous prime is 971406833. The next prime is 971406859. The reversal of 971406853 is 358604179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 971381889 + 24964 = 31167^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 971406853 - 2¹³ = 971398661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971406859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485703426 + 485703427.

It is an arithmetic number, because the mean of its divisors is an integer number (485703427).

Almost surely, 2^971406853 is an apocalyptic number.

It is an amenable number.

971406853 is a deficient number, since it is larger than the sum of its proper divisors (1).

971406853 is an equidigital number, since it uses as much as digits as its factorization.

971406853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 971406853 is about 31167.4004851223. The cubic root of 971406853 is about 990.3766389931.

The spelling of 971406853 in words is "nine hundred seventy-one million, four hundred six thousand, eight hundred fifty-three".