6680401 has 12 divisors (see below), whose sum is σ = 8268672. Its totient is φ = 5284656.

The previous prime is 6680389. The next prime is 6680413. The reversal of 6680401 is 1040866.

It is an interprime number because it is at equal distance from previous prime (6680389) and next prime (6680413).

It is not a de Polignac number, because 6680401 - 2⁷ = 6680273 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6680431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1641 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (689056).

Almost surely, 2^6680401 is an apocalyptic number.

It is an amenable number.

6680401 is a deficient number, since it is larger than the sum of its proper divisors (1588271).

6680401 is a wasteful number, since it uses less digits than its factorization.

6680401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680 (or 5667 counting only the distinct ones).

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

The square root of 6680401 is about 2584.6471712789. The cubic root of 6680401 is about 188.3363621479.

The spelling of 6680401 in words is "six million, six hundred eighty thousand, four hundred one".