971208349 has 4 divisors (see below), whose sum is σ = 985704064. Its totient is φ = 956712636.

The previous prime is 971208323. The next prime is 971208353. The reversal of 971208349 is 943802179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 971208349 - 2⁷ = 971208221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971208379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7247757 + ... + 7247890.

It is an arithmetic number, because the mean of its divisors is an integer number (246426016).

Almost surely, 2^971208349 is an apocalyptic number.

It is an amenable number.

971208349 is a deficient number, since it is larger than the sum of its proper divisors (14495715).

971208349 is a wasteful number, since it uses less digits than its factorization.

971208349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14495714.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 971208349 is about 31164.2158412497. The cubic root of 971208349 is about 990.3091742584.

The spelling of 971208349 in words is "nine hundred seventy-one million, two hundred eight thousand, three hundred forty-nine".