920437684 has 12 divisors (see below), whose sum is σ = 1611124900. Its totient is φ = 460116288.

The previous prime is 920437673. The next prime is 920437703. The reversal of 920437684 is 486734029.

It can be written as a sum of positive squares in 2 ways, for example, as 471845284 + 448592400 = 21722^2 + 21180^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 920437684.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3279 + ... + 43030.

Almost surely, 2^920437684 is an apocalyptic number.

It is an amenable number.

920437684 is a deficient number, since it is larger than the sum of its proper divisors (690687216).

920437684 is a wasteful number, since it uses less digits than its factorization.

920437684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51282 (or 51280 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 920437684 is about 30338.7159253651. The cubic root of 920437684 is about 972.7430360304.

The spelling of 920437684 in words is "nine hundred twenty million, four hundred thirty-seven thousand, six hundred eighty-four".