968849521 has 4 divisors (see below), whose sum is σ = 970021872. Its totient is φ = 967677172.

The previous prime is 968849509. The next prime is 968849527. The reversal of 968849521 is 125948869.

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, and also an emirpimes, since its reverse is a distinct semiprime: 125948869 = 17 ⋅7408757.

It is a cyclic number.

It is not a de Polignac number, because 968849521 - 2⁵ = 968849489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (968849527) 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, 584935 + ... + 586588.

It is an arithmetic number, because the mean of its divisors is an integer number (242505468).

Almost surely, 2^968849521 is an apocalyptic number.

It is an amenable number.

968849521 is a deficient number, since it is larger than the sum of its proper divisors (1172351).

968849521 is a wasteful number, since it uses less digits than its factorization.

968849521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172350.

The product of its digits is 1244160, while the sum is 52.

The square root of 968849521 is about 31126.3476977303. The cubic root of 968849521 is about 989.5067845572.

The spelling of 968849521 in words is "nine hundred sixty-eight million, eight hundred forty-nine thousand, five hundred twenty-one".