920620684 has 12 divisors (see below), whose sum is σ = 1611313704. Its totient is φ = 460245344.

The previous prime is 920620667. The next prime is 920620691. The reversal of 920620684 is 486026029.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30672 + ... + 52744.

It is an arithmetic number, because the mean of its divisors is an integer number (134276142).

Almost surely, 2^920620684 is an apocalyptic number.

It is an amenable number.

920620684 is a deficient number, since it is larger than the sum of its proper divisors (690693020).

920620684 is a wasteful number, since it uses less digits than its factorization.

920620684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32504 (or 32502 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 920620684 is about 30341.7317238156. The cubic root of 920620684 is about 972.8074981816.

It can be divided in two parts, 9206 and 20684, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 920620684 in words is "nine hundred twenty million, six hundred twenty thousand, six hundred eighty-four".