6700440073 has 2 divisors, whose sum is σ = 6700440074. Its totient is φ = 6700440072.

The previous prime is 6700440059. The next prime is 6700440077. The reversal of 6700440073 is 3700440076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6677668089 + 22771984 = 81717^2 + 4772^2 .

It is a cyclic number.

It is not a de Polignac number, because 6700440073 - 2⁹ = 6700439561 is a prime.

It is not a weakly prime, because it can be changed into another prime (6700440077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350220036 + 3350220037.

It is an arithmetic number, because the mean of its divisors is an integer number (3350220037).

Almost surely, 2^6700440073 is an apocalyptic number.

It is an amenable number.

6700440073 is a deficient number, since it is larger than the sum of its proper divisors (1).

6700440073 is an equidigital number, since it uses as much as digits as its factorization.

6700440073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 6700440073 is about 81856.2158482787. The cubic root of 6700440073 is about 1885.2449051033.

The spelling of 6700440073 in words is "six billion, seven hundred million, four hundred forty thousand, seventy-three".