620676844 has 12 divisors (see below), whose sum is σ = 1090316304. Its totient is φ = 309157904.

The previous prime is 620676841. The next prime is 620676853. The reversal of 620676844 is 448676026.

It is a self number, because there is not a number n which added to its sum of digits gives 620676844.

It is not an unprimeable number, because it can be changed into a prime (620676841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293947 + ... + 296050.

It is an arithmetic number, because the mean of its divisors is an integer number (90859692).

Almost surely, 2^620676844 is an apocalyptic number.

It is an amenable number.

620676844 is a deficient number, since it is larger than the sum of its proper divisors (469639460).

620676844 is a wasteful number, since it uses less digits than its factorization.

620676844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590264 (or 590262 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 620676844 is about 24913.3868432215. The cubic root of 620676844 is about 853.0120791188.

The spelling of 620676844 in words is "six hundred twenty million, six hundred seventy-six thousand, eight hundred forty-four".