6609699 has 6 divisors (see below), whose sum is σ = 9547356. Its totient is φ = 4406460.

The previous prime is 6609689. The next prime is 6609737. The reversal of 6609699 is 9969066.

6609699 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6609699 - 2⁵ = 6609667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6609649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367197 + ... + 367214.

It is an arithmetic number, because the mean of its divisors is an integer number (1591226).

Almost surely, 2^6609699 is an apocalyptic number.

6609699 is a deficient number, since it is larger than the sum of its proper divisors (2937657).

6609699 is a wasteful number, since it uses less digits than its factorization.

6609699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734417 (or 734414 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 6609699 is about 2570.9334880545. The cubic root of 6609699 is about 187.6695852383.

It can be divided in two parts, 660969 and 9, that multiplied together give a square (5948721 = 2439²).

The spelling of 6609699 in words is "six million, six hundred nine thousand, six hundred ninety-nine".