6401069 has 2 divisors, whose sum is σ = 6401070. Its totient is φ = 6401068.

The previous prime is 6401033. The next prime is 6401093. The reversal of 6401069 is 9601046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 169 = 2530^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 6401069 - 2⁸ = 6400813 is a prime.

It is a super-2 number, since 2×6401069² = 81947368685522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6401029) 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 as a sum of consecutive naturals, namely, 3200534 + 3200535.

It is an arithmetic number, because the mean of its divisors is an integer number (3200535).

Almost surely, 2^6401069 is an apocalyptic number.

It is an amenable number.

6401069 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401069 is an equidigital number, since it uses as much as digits as its factorization.

6401069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 6401069 is about 2530.0333989890. The cubic root of 6401069 is about 185.6738899742.

The spelling of 6401069 in words is "six million, four hundred one thousand, sixty-nine".