6998997 has 8 divisors (see below), whose sum is σ = 9424800. Its totient is φ = 4619600.

The previous prime is 6998989. The next prime is 6999007. The reversal of 6998997 is 7998996.

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 6998997 - 2³ = 6998989 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 9⁴ + 9⁴ + 8⁷ + 9⁵ + 9⁷ + 7² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6998197) 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, 11247 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 2^6998997 is an apocalyptic number.

It is an amenable number.

6998997 is a deficient number, since it is larger than the sum of its proper divisors (2425803).

6998997 is a wasteful number, since it uses less digits than its factorization.

6998997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23203.

The product of its digits is 2204496, while the sum is 57.

The square root of 6998997 is about 2645.5617550910. The cubic root of 6998997 is about 191.2839813171.

Subtracting 6998997 from its reverse (7998996), we obtain a palindrome (999999).

The spelling of 6998997 in words is "six million, nine hundred ninety-eight thousand, nine hundred ninety-seven".