960916921 has 4 divisors (see below), whose sum is σ = 961821952. Its totient is φ = 960011892.

The previous prime is 960916919. The next prime is 960916933. The reversal of 960916921 is 129619069.

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: 129619069 = 521 ⋅248789.

It is a cyclic number.

It is not a de Polignac number, because 960916921 - 2¹ = 960916919 is a prime.

It is a super-2 number, since 2×960916921² = 1846722658128240482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (960916981) 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 in 3 ways as a sum of consecutive naturals, for example, 450921 + ... + 453046.

It is an arithmetic number, because the mean of its divisors is an integer number (240455488).

Almost surely, 2^960916921 is an apocalyptic number.

It is an amenable number.

960916921 is a deficient number, since it is larger than the sum of its proper divisors (905031).

960916921 is a wasteful number, since it uses less digits than its factorization.

960916921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905030.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 960916921 is about 30998.6599871672. The cubic root of 960916921 is about 986.7988022425.

The spelling of 960916921 in words is "nine hundred sixty million, nine hundred sixteen thousand, nine hundred twenty-one".