920091092 has 12 divisors (see below), whose sum is σ = 1620966900. Its totient is φ = 456957696.

The previous prime is 920091089. The next prime is 920091163. The reversal of 920091092 is 290190029.

It can be written as a sum of positive squares in 2 ways, for example, as 320624836 + 599466256 = 17906^2 + 24484^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771293 + ... + 772484.

It is an arithmetic number, because the mean of its divisors is an integer number (135080575).

Almost surely, 2^920091092 is an apocalyptic number.

It is an amenable number.

920091092 is a deficient number, since it is larger than the sum of its proper divisors (700875808).

920091092 is a wasteful number, since it uses less digits than its factorization.

920091092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543930 (or 1543928 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 920091092 is about 30333.0033461904. The cubic root of 920091092 is about 972.6209248194.

The spelling of 920091092 in words is "nine hundred twenty million, ninety-one thousand, ninety-two".