6995409 has 8 divisors (see below), whose sum is σ = 9648960. Its totient is φ = 4502736.

The previous prime is 6995407. The next prime is 6995411. The reversal of 6995409 is 9045996.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6995407) and next prime (6995411).

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

It is not a de Polignac number, because 6995409 - 2¹ = 6995407 is a prime.

6995409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6995407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40117 + ... + 40290.

It is an arithmetic number, because the mean of its divisors is an integer number (1206120).

Almost surely, 2^6995409 is an apocalyptic number.

It is an amenable number.

6995409 is a deficient number, since it is larger than the sum of its proper divisors (2653551).

6995409 is a wasteful number, since it uses less digits than its factorization.

6995409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80439.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 6995409 is about 2644.8835513119. The cubic root of 6995409 is about 191.2512888119.

The spelling of 6995409 in words is "six million, nine hundred ninety-five thousand, four hundred nine".