921433113 has 6 divisors (see below), whose sum is σ = 1330958954. Its totient is φ = 614288736.

The previous prime is 921433069. The next prime is 921433127. The reversal of 921433113 is 311334129.

It can be written as a sum of positive squares in only one way, i.e., 827885529 + 93547584 = 28773^2 + 9672^2 .

It is not a de Polignac number, because 921433113 - 2¹⁰ = 921432089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921433193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51190720 + ... + 51190737.

Almost surely, 2^921433113 is an apocalyptic number.

It is an amenable number.

921433113 is a deficient number, since it is larger than the sum of its proper divisors (409525841).

921433113 is a wasteful number, since it uses less digits than its factorization.

921433113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102381463 (or 102381460 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 921433113 is about 30355.1167515462. The cubic root of 921433113 is about 973.0935749793.

The spelling of 921433113 in words is "nine hundred twenty-one million, four hundred thirty-three thousand, one hundred thirteen".