6629761 has 2 divisors, whose sum is σ = 6629762. Its totient is φ = 6629760.

The previous prime is 6629747. The next prime is 6629807. The reversal of 6629761 is 1679266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6076225 + 553536 = 2465^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 6629761 - 2⁵ = 6629729 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6629761.

It is not a weakly prime, because it can be changed into another prime (6629731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314880 + 3314881.

It is an arithmetic number, because the mean of its divisors is an integer number (3314881).

Almost surely, 2^6629761 is an apocalyptic number.

6629761 is the 1152-nd centered decagonal number.

It is an amenable number.

6629761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629761 is an equidigital number, since it uses as much as digits as its factorization.

6629761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 6629761 is about 2574.8322275442. The cubic root of 6629761 is about 187.8592673191.

The spelling of 6629761 in words is "six million, six hundred twenty-nine thousand, seven hundred sixty-one".