6620954 has 16 divisors (see below), whose sum is σ = 10189800. Its totient is φ = 3225600.

The previous prime is 6620953. The next prime is 6620981. The reversal of 6620954 is 4590266.

It can be written as a sum of positive squares in 4 ways, for example, as 6620329 + 625 = 2573^2 + 25^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6620954.

It is not an unprimeable number, because it can be changed into a prime (6620951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14522 + ... + 14970.

Almost surely, 2^6620954 is an apocalyptic number.

6620954 is a deficient number, since it is larger than the sum of its proper divisors (3568846).

6620954 is a wasteful number, since it uses less digits than its factorization.

6620954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 6620954 is about 2573.1214506898. The cubic root of 6620954 is about 187.7760461335.

The spelling of 6620954 in words is "six million, six hundred twenty thousand, nine hundred fifty-four".