920523994 has 16 divisors (see below), whose sum is σ = 1488922848. Its totient is φ = 424307952.

The previous prime is 920523949. The next prime is 920523997. The reversal of 920523994 is 499325029.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 920523994.

It is not an unprimeable number, because it can be changed into a prime (920523997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032 + ... + 42955.

It is an arithmetic number, because the mean of its divisors is an integer number (93057678).

Almost surely, 2^920523994 is an apocalyptic number.

920523994 is a deficient number, since it is larger than the sum of its proper divisors (568398854).

920523994 is a wasteful number, since it uses less digits than its factorization.

920523994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45789.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 920523994 is about 30340.1383319193. The cubic root of 920523994 is about 972.7734399816.

The spelling of 920523994 in words is "nine hundred twenty million, five hundred twenty-three thousand, nine hundred ninety-four".