6900043 has 4 divisors (see below), whose sum is σ = 6910120. Its totient is φ = 6889968.

The previous prime is 6900001. The next prime is 6900053. The reversal of 6900043 is 3400096.

6900043 is nontrivially palindromic in base 2.

6900043 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6900043 is a prime.

It is a super-2 number, since 2×6900043² = 95221186803698, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 6899987 and 6900023.

It is not an unprimeable number, because it can be changed into a prime (6900053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3930 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (1727530).

Almost surely, 2^6900043 is an apocalyptic number.

6900043 is a deficient number, since it is larger than the sum of its proper divisors (10077).

6900043 is an equidigital number, since it uses as much as digits as its factorization.

6900043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 6900043 is about 2626.7932922101. The cubic root of 6900043 is about 190.3782216664.

The spelling of 6900043 in words is "six million, nine hundred thousand, forty-three".