6998994 has 64 divisors (see below), whose sum is σ = 16634880. Its totient is φ = 2177280.

The previous prime is 6998989. The next prime is 6999007. The reversal of 6998994 is 4998996.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1259712) is a multiple of the sum of its prime factors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 6998994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61882 + ... + 61994.

It is an arithmetic number, because the mean of its divisors is an integer number (259920).

Almost surely, 2^6998994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6998994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8317440).

6998994 is an abundant number, since it is smaller than the sum of its proper divisors (9635886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6998994 is a wasteful number, since it uses less digits than its factorization.

6998994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 186 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 6998994 is about 2645.5611881036. The cubic root of 6998994 is about 191.2839539869.

The spelling of 6998994 in words is "six million, nine hundred ninety-eight thousand, nine hundred ninety-four".