6201620 has 12 divisors (see below), whose sum is σ = 13023444. Its totient is φ = 2480640.

The previous prime is 6201599. The next prime is 6201641. The reversal of 6201620 is 261026.

It is an interprime number because it is at equal distance from previous prime (6201599) and next prime (6201641).

It can be written as a sum of positive squares in 2 ways, for example, as 1175056 + 5026564 = 1084^2 + 2242^2 .

It is a congruent 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, 155021 + ... + 155060.

It is an arithmetic number, because the mean of its divisors is an integer number (1085287).

Almost surely, 2^6201620 is an apocalyptic number.

It is an amenable number.

6201620 is an abundant number, since it is smaller than the sum of its proper divisors (6821824).

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

6201620 is a wasteful number, since it uses less digits than its factorization.

6201620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310090 (or 310088 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 6201620 is about 2490.3052021790. The cubic root of 6201620 is about 183.7250540741.

Adding to 6201620 its reverse (261026), we get a palindrome (6462646).

The spelling of 6201620 in words is "six million, two hundred one thousand, six hundred twenty".