6701581 has 8 divisors (see below), whose sum is σ = 6976800. Its totient is φ = 6429360.

The previous prime is 6701537. The next prime is 6701603. The reversal of 6701581 is 1851076.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6701581 - 2⁹ = 6701069 is a prime.

It is a super-2 number, since 2×6701581² = 89822375799122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6701381) 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, 4546 + ... + 5836.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^6701581 is an apocalyptic number.

It is an amenable number.

6701581 is a deficient number, since it is larger than the sum of its proper divisors (275219).

6701581 is a wasteful number, since it uses less digits than its factorization.

6701581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 6701581 is about 2588.7411998885. The cubic root of 6701581 is about 188.5351903286.

The spelling of 6701581 in words is "six million, seven hundred one thousand, five hundred eighty-one".