6220681 has 4 divisors (see below), whose sum is σ = 6365392. Its totient is φ = 6075972.

The previous prime is 6220673. The next prime is 6220693. The reversal of 6220681 is 1860226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1860226 = 2 ⋅930113.

It is a cyclic number.

It is not a de Polignac number, because 6220681 - 2³ = 6220673 is a prime.

It is a super-2 number, since 2×6220681² = 77393744207522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6220631) 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, 72291 + ... + 72376.

It is an arithmetic number, because the mean of its divisors is an integer number (1591348).

Almost surely, 2^6220681 is an apocalyptic number.

It is an amenable number.

6220681 is a deficient number, since it is larger than the sum of its proper divisors (144711).

6220681 is a wasteful number, since it uses less digits than its factorization.

6220681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144710.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6220681 is about 2494.1293069927. The cubic root of 6220681 is about 183.9130910455.

The spelling of 6220681 in words is "six million, two hundred twenty thousand, six hundred eighty-one".