6601099 has 4 divisors (see below), whose sum is σ = 6615360. Its totient is φ = 6586840.

The previous prime is 6601093. The next prime is 6601129. The reversal of 6601099 is 9901066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6601099 - 2¹¹ = 6599051 is a prime.

It is an Ulam number.

6601099 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6601099.

It is not an unprimeable number, because it can be changed into a prime (6601093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6412 + ... + 7369.

It is an arithmetic number, because the mean of its divisors is an integer number (1653840).

Almost surely, 2^6601099 is an apocalyptic number.

6601099 is a deficient number, since it is larger than the sum of its proper divisors (14261).

6601099 is a wasteful number, since it uses less digits than its factorization.

6601099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14260.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 6601099 is about 2569.2603994146. The cubic root of 6601099 is about 187.5881564711.

The spelling of 6601099 in words is "six million, six hundred one thousand, ninety-nine".