6629445 has 20 divisors (see below), whose sum is σ = 11884620. Its totient is φ = 3535488.

The previous prime is 6629437. The next prime is 6629471. The reversal of 6629445 is 5449266.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 4397409 = 1494^2 + 2097^2 .

It is not a de Polignac number, because 6629445 - 2³ = 6629437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7780 + ... + 8589.

It is an arithmetic number, because the mean of its divisors is an integer number (594231).

Almost surely, 2^6629445 is an apocalyptic number.

It is an amenable number.

6629445 is a deficient number, since it is larger than the sum of its proper divisors (5255175).

6629445 is a wasteful number, since it uses less digits than its factorization.

6629445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16386 (or 16377 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 6629445 is about 2574.7708635916. The cubic root of 6629445 is about 187.8562825724.

The spelling of 6629445 in words is "six million, six hundred twenty-nine thousand, four hundred forty-five".