6998667 has 8 divisors (see below), whose sum is σ = 10049424.
Its totient is φ = 4306848.
The previous prime is 6998627. The next prime is 6998681. The reversal of 6998667 is 7668996.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 6998667 - 26 = 6998603 is a prime.
It is not an unprimeable number, because it can be changed into a prime (6998617) 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, 89688 + ... + 89765.
It is an arithmetic number, because the mean of its divisors is an integer number (1256178).
Almost surely, 26998667 is an apocalyptic number.
6998667 is a deficient number, since it is larger than the sum of its proper divisors (3050757).
6998667 is a wasteful number, since it uses less digits than its factorization.
6998667 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 179469.
The product of its digits is 979776, while the sum is 51.
The square root of 6998667 is about 2645.4993857493.
The cubic root of 6998667 is about 191.2809749480.
The spelling of 6998667 in words is "six million, nine hundred ninety-eight thousand, six hundred sixty-seven".