920684132 has 6 divisors (see below), whose sum is σ = 1611197238. Its totient is φ = 460342064.

The previous prime is 920684129. The next prime is 920684189. The reversal of 920684132 is 231486029.

It can be written as a sum of positive squares in only one way, i.e., 858841636 + 61842496 = 29306^2 + 7864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 920684092 and 920684101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115085513 + ... + 115085520.

It is an arithmetic number, because the mean of its divisors is an integer number (268532873).

Almost surely, 2^920684132 is an apocalyptic number.

It is an amenable number.

920684132 is a deficient number, since it is larger than the sum of its proper divisors (690513106).

920684132 is a wasteful number, since it uses less digits than its factorization.

920684132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230171037 (or 230171035 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 920684132 is about 30342.7772624722. Note that the first 3 decimals coincide. The cubic root of 920684132 is about 972.8298458844.

The spelling of 920684132 in words is "nine hundred twenty million, six hundred eighty-four thousand, one hundred thirty-two".