6990494 has 8 divisors (see below), whose sum is σ = 11983728. Its totient is φ = 2995920.

The previous prime is 6990493. The next prime is 6990517. The reversal of 6990494 is 4940996.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990493) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 249647 + ... + 249674.

It is an arithmetic number, because the mean of its divisors is an integer number (1497966).

Almost surely, 2^6990494 is an apocalyptic number.

6990494 is a deficient number, since it is larger than the sum of its proper divisors (4993234).

6990494 is a wasteful number, since it uses less digits than its factorization.

6990494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499330.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 6990494 is about 2643.9542356100. The cubic root of 6990494 is about 191.2064870321.

The spelling of 6990494 in words is "six million, nine hundred ninety thousand, four hundred ninety-four".