6629651 has 12 divisors (see below), whose sum is σ = 8119080. Its totient is φ = 5382720.

The previous prime is 6629647. The next prime is 6629683. The reversal of 6629651 is 1569266.

It is a happy number.

It is not a de Polignac number, because 6629651 - 2² = 6629647 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6629251) 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, 2630 + ... + 4491.

It is an arithmetic number, because the mean of its divisors is an integer number (676590).

Almost surely, 2^6629651 is an apocalyptic number.

6629651 is a deficient number, since it is larger than the sum of its proper divisors (1489429).

6629651 is a wasteful number, since it uses less digits than its factorization.

6629651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154 (or 7147 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 6629651 is about 2574.8108668405. The cubic root of 6629651 is about 187.8582283358.

The spelling of 6629651 in words is "six million, six hundred twenty-nine thousand, six hundred fifty-one".