6699745 has 16 divisors (see below), whose sum is σ = 8809920. Its totient is φ = 4860864.

The previous prime is 6699743. The next prime is 6699757. The reversal of 6699745 is 5479966.

It is a cyclic number.

It is not a de Polignac number, because 6699745 - 2¹ = 6699743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6699695 and 6699704.

It is not an unprimeable number, because it can be changed into a prime (6699743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2962 + ... + 4708.

It is an arithmetic number, because the mean of its divisors is an integer number (550620).

Almost surely, 2^6699745 is an apocalyptic number.

6699745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6699745 is a deficient number, since it is larger than the sum of its proper divisors (2110175).

6699745 is a wasteful number, since it uses less digits than its factorization.

6699745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its digits is 408240, while the sum is 46.

The square root of 6699745 is about 2588.3865630929. The cubic root of 6699745 is about 188.5179713955.

The spelling of 6699745 in words is "six million, six hundred ninety-nine thousand, seven hundred forty-five".