9065916921 has 8 divisors (see below), whose sum is σ = 12133851840. Its totient is φ = 6020963312.

The previous prime is 9065916913. The next prime is 9065916943. The reversal of 9065916921 is 1296195609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9065916921 - 2³ = 9065916913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9065916121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5744406 + ... + 5745983.

It is an arithmetic number, because the mean of its divisors is an integer number (1516731480).

Almost surely, 2^9065916921 is an apocalyptic number.

It is an amenable number.

9065916921 is a deficient number, since it is larger than the sum of its proper divisors (3067934919).

9065916921 is a wasteful number, since it uses less digits than its factorization.

9065916921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11490655.

The product of its (nonzero) digits is 262440, while the sum is 48.

The square root of 9065916921 is about 95215.1086802930. The cubic root of 9065916921 is about 2085.1497243089.

The spelling of 9065916921 in words is "nine billion, sixty-five million, nine hundred sixteen thousand, nine hundred twenty-one".