6989351 has 2 divisors, whose sum is σ = 6989352. Its totient is φ = 6989350.

The previous prime is 6989341. The next prime is 6989357. The reversal of 6989351 is 1539896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6989351 - 2⁶ = 6989287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6989299 and 6989308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6989357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494675 + 3494676.

It is an arithmetic number, because the mean of its divisors is an integer number (3494676).

Almost surely, 2^6989351 is an apocalyptic number.

6989351 is a deficient number, since it is larger than the sum of its proper divisors (1).

6989351 is an equidigital number, since it uses as much as digits as its factorization.

6989351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 6989351 is about 2643.7380732591. The cubic root of 6989351 is about 191.1960652161.

The spelling of 6989351 in words is "six million, nine hundred eighty-nine thousand, three hundred fifty-one".