921789094 has 16 divisors (see below), whose sum is σ = 1392076800. Its totient is φ = 457772040.

The previous prime is 921789083. The next prime is 921789097. The reversal of 921789094 is 490987129.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921789097) 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, 270139 + ... + 273529.

It is an arithmetic number, because the mean of its divisors is an integer number (87004800).

Almost surely, 2^921789094 is an apocalyptic number.

921789094 is a deficient number, since it is larger than the sum of its proper divisors (470287706).

921789094 is a wasteful number, since it uses less digits than its factorization.

921789094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 921789094 is about 30360.9797931490. The cubic root of 921789094 is about 973.2188719106.

The spelling of 921789094 in words is "nine hundred twenty-one million, seven hundred eighty-nine thousand, ninety-four".