921241117 has 4 divisors (see below), whose sum is σ = 934216416. Its totient is φ = 908265820.

The previous prime is 921241091. The next prime is 921241129. The reversal of 921241117 is 711142129.

921241117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 921241117 - 2¹¹ = 921239069 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 (921221117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6487543 + ... + 6487684.

It is an arithmetic number, because the mean of its divisors is an integer number (233554104).

Almost surely, 2^921241117 is an apocalyptic number.

It is an amenable number.

921241117 is a deficient number, since it is larger than the sum of its proper divisors (12975299).

921241117 is a wasteful number, since it uses less digits than its factorization.

921241117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975298.

The product of its digits is 1008, while the sum is 28.

The square root of 921241117 is about 30351.9540886579. The cubic root of 921241117 is about 973.0259835107.

The spelling of 921241117 in words is "nine hundred twenty-one million, two hundred forty-one thousand, one hundred seventeen".