6966551 has 2 divisors, whose sum is σ = 6966552. Its totient is φ = 6966550.

The previous prime is 6966529. The next prime is 6966569. The reversal of 6966551 is 1556696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6966551 - 2²² = 2772247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6966151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3483275 + 3483276.

It is an arithmetic number, because the mean of its divisors is an integer number (3483276).

Almost surely, 2^6966551 is an apocalyptic number.

6966551 is a deficient number, since it is larger than the sum of its proper divisors (1).

6966551 is an equidigital number, since it uses as much as digits as its factorization.

6966551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 38.

The square root of 6966551 is about 2639.4224747092. The cubic root of 6966551 is about 190.9879381654.

The spelling of 6966551 in words is "six million, nine hundred sixty-six thousand, five hundred fifty-one".