6629969 has 2 divisors, whose sum is σ = 6629970. Its totient is φ = 6629968.

The previous prime is 6629963. The next prime is 6630011. The reversal of 6629969 is 9699266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6436369 + 193600 = 2537^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 6629969 - 2⁸ = 6629713 is a prime.

It is a super-2 number, since 2×6629969² = 87912977881922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6629963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314984 + 3314985.

It is an arithmetic number, because the mean of its divisors is an integer number (3314985).

Almost surely, 2^6629969 is an apocalyptic number.

It is an amenable number.

6629969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629969 is an equidigital number, since it uses as much as digits as its factorization.

6629969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 6629969 is about 2574.8726182085. The cubic root of 6629969 is about 187.8612319107.

The spelling of 6629969 in words is "six million, six hundred twenty-nine thousand, nine hundred sixty-nine".