6771620 has 12 divisors (see below), whose sum is σ = 14220444. Its totient is φ = 2708640.

The previous prime is 6771577. The next prime is 6771631. The reversal of 6771620 is 261776.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 2795584 = 1994^2 + 1672^2 .

It is an Ulam number.

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, 169271 + ... + 169310.

It is an arithmetic number, because the mean of its divisors is an integer number (1185037).

Almost surely, 2^6771620 is an apocalyptic number.

It is an amenable number.

6771620 is an abundant number, since it is smaller than the sum of its proper divisors (7448824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6771620 is a wasteful number, since it uses less digits than its factorization.

6771620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338590 (or 338588 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 6771620 is about 2602.2336559195. The cubic root of 6771620 is about 189.1897164648.

The spelling of 6771620 in words is "six million, seven hundred seventy-one thousand, six hundred twenty".