921030092 has 12 divisors (see below), whose sum is σ = 1696634520. Its totient is φ = 436277376.

The previous prime is 921030091. The next prime is 921030113. The reversal of 921030092 is 290030129.

It is not an unprimeable number, because it can be changed into a prime (921030091) 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, 6059333 + ... + 6059484.

It is an arithmetic number, because the mean of its divisors is an integer number (141386210).

Almost surely, 2^921030092 is an apocalyptic number.

It is an amenable number.

921030092 is a deficient number, since it is larger than the sum of its proper divisors (775604428).

921030092 is a wasteful number, since it uses less digits than its factorization.

921030092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118840 (or 12118838 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 921030092 is about 30348.4775894937. The cubic root of 921030092 is about 972.9516821200.

The spelling of 921030092 in words is "nine hundred twenty-one million, thirty thousand, ninety-two".