6607906 has 4 divisors (see below), whose sum is σ = 9911862. Its totient is φ = 3303952.

The previous prime is 6607903. The next prime is 6607919. The reversal of 6607906 is 6097066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6097066 = 2 ⋅3048533.

It can be written as a sum of positive squares in only one way, i.e., 5688225 + 919681 = 2385^2 + 959^2 .

It is not an unprimeable number, because it can be changed into a prime (6607903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651975 + ... + 1651978.

Almost surely, 2^6607906 is an apocalyptic number.

6607906 is a deficient number, since it is larger than the sum of its proper divisors (3303956).

6607906 is a wasteful number, since it uses less digits than its factorization.

6607906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303955.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 6607906 is about 2570.5847583770. The cubic root of 6607906 is about 187.6526141176.

The spelling of 6607906 in words is "six million, six hundred seven thousand, nine hundred six".