6989071 has 2 divisors, whose sum is σ = 6989072. Its totient is φ = 6989070.

The previous prime is 6989063. The next prime is 6989107. The reversal of 6989071 is 1709896.

Together with next prime (6989107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6989071 - 2³ = 6989063 is a prime.

It is a super-2 number, since 2×6989071² = 97694226886082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6984071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494535 + 3494536.

It is an arithmetic number, because the mean of its divisors is an integer number (3494536).

Almost surely, 2^6989071 is an apocalyptic number.

6989071 is a deficient number, since it is larger than the sum of its proper divisors (1).

6989071 is an equidigital number, since it uses as much as digits as its factorization.

6989071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 6989071 is about 2643.6851174071. The cubic root of 6989071 is about 191.1935120170.

The spelling of 6989071 in words is "six million, nine hundred eighty-nine thousand, seventy-one".