6899423 has 2 divisors, whose sum is σ = 6899424. Its totient is φ = 6899422.

The previous prime is 6899383. The next prime is 6899429. The reversal of 6899423 is 3249986.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6899423 - 2¹² = 6895327 is a prime.

It is a d-powerful number, because it can be written as 6² + 8⁷ + 9⁴ + 9⁴ + 4⁶ + 2¹¹ + 3¹⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6899429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3449711 + 3449712.

It is an arithmetic number, because the mean of its divisors is an integer number (3449712).

Almost surely, 2^6899423 is an apocalyptic number.

6899423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6899423 is an equidigital number, since it uses as much as digits as its factorization.

6899423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 6899423 is about 2626.6752749436. The cubic root of 6899423 is about 190.3725193815.

The spelling of 6899423 in words is "six million, eight hundred ninety-nine thousand, four hundred twenty-three".