620773684 has 24 divisors (see below), whose sum is σ = 1099478016. Its totient is φ = 306660000.

The previous prime is 620773663. The next prime is 620773691. The reversal of 620773684 is 486377026.

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 620773684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112674 + ... + 118054.

It is an arithmetic number, because the mean of its divisors is an integer number (45811584).

Almost surely, 2^620773684 is an apocalyptic number.

It is an amenable number.

620773684 is a deficient number, since it is larger than the sum of its proper divisors (478704332).

620773684 is a wasteful number, since it uses less digits than its factorization.

620773684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727 (or 5725 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 620773684 is about 24915.3303008409. The cubic root of 620773684 is about 853.0564400423.

The spelling of 620773684 in words is "six hundred twenty million, seven hundred seventy-three thousand, six hundred eighty-four".