6899477 has 8 divisors (see below), whose sum is σ = 7686840. Its totient is φ = 6148800.

The previous prime is 6899461. The next prime is 6899483. The reversal of 6899477 is 7749986.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 108241 + 6791236 = 329^2 + 2606^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6899477 - 2⁴ = 6899461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6899447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8774 + ... + 9527.

It is an arithmetic number, because the mean of its divisors is an integer number (960855).

Almost surely, 2^6899477 is an apocalyptic number.

It is an amenable number.

6899477 is a deficient number, since it is larger than the sum of its proper divisors (787363).

6899477 is a wasteful number, since it uses less digits than its factorization.

6899477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18343.

The product of its digits is 762048, while the sum is 50.

The square root of 6899477 is about 2626.6855540776. The cubic root of 6899477 is about 190.3730160457.

The spelling of 6899477 in words is "six million, eight hundred ninety-nine thousand, four hundred seventy-seven".