6947990858 has 8 divisors (see below), whose sum is σ = 10519388352. Its totient is φ = 3441528076.

The previous prime is 6947990843. The next prime is 6947990887. The reversal of 6947990858 is 8580997496.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6947990794 and 6947990803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16233410 + ... + 16233837.

It is an arithmetic number, because the mean of its divisors is an integer number (1314923544).

Almost surely, 2^6947990858 is an apocalyptic number.

6947990858 is a deficient number, since it is larger than the sum of its proper divisors (3571397494).

6947990858 is a wasteful number, since it uses less digits than its factorization.

6947990858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32467356.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The square root of 6947990858 is about 83354.6090987175. The cubic root of 6947990858 is about 1908.1817860615.

The spelling of 6947990858 in words is "six billion, nine hundred forty-seven million, nine hundred ninety thousand, eight hundred fifty-eight".