6629741 has 8 divisors (see below), whose sum is σ = 6862968. Its totient is φ = 6400000.

The previous prime is 6629737. The next prime is 6629747. The reversal of 6629741 is 1479266.

It can be written as a sum of positive squares in 4 ways, for example, as 3222025 + 3407716 = 1795^2 + 1846^2 .

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

It is a 6-Lehmer number, since φ(6629741) divides (6629741-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 6629741 - 2² = 6629737 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629747) 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, 3341 + ... + 4941.

It is an arithmetic number, because the mean of its divisors is an integer number (857871).

Almost surely, 2^6629741 is an apocalyptic number.

It is an amenable number.

6629741 is a deficient number, since it is larger than the sum of its proper divisors (233227).

6629741 is a wasteful number, since it uses less digits than its factorization.

6629741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743.

The product of its digits is 18144, while the sum is 35.

The square root of 6629741 is about 2574.8283437930. The cubic root of 6629741 is about 187.8590784139.

The spelling of 6629741 in words is "six million, six hundred twenty-nine thousand, seven hundred forty-one".