6894553 has 2 divisors, whose sum is σ = 6894554. Its totient is φ = 6894552.

The previous prime is 6894541. The next prime is 6894557. The reversal of 6894553 is 3554986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5721664 + 1172889 = 2392^2 + 1083^2 .

It is a cyclic number.

It is not a de Polignac number, because 6894553 - 2⁵ = 6894521 is a prime.

It is a super-2 number, since 2×6894553² = 95069722139618, which contains 22 as substring.

6894553 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6894557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3447276 + 3447277.

It is an arithmetic number, because the mean of its divisors is an integer number (3447277).

Almost surely, 2^6894553 is an apocalyptic number.

It is an amenable number.

6894553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6894553 is an equidigital number, since it uses as much as digits as its factorization.

6894553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 6894553 is about 2625.7480838801. The cubic root of 6894553 is about 190.3277169687.

It can be divided in two parts, 6894 and 553, that added together give a palindrome (7447).

The spelling of 6894553 in words is "six million, eight hundred ninety-four thousand, five hundred fifty-three".