1083947406 has 8 divisors (see below), whose sum is σ = 2167894824. Its totient is φ = 361315800.

The previous prime is 1083947393. The next prime is 1083947407. The reversal of 1083947406 is 6047493801.

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

1083947406 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083947407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90328945 + ... + 90328956.

It is an arithmetic number, because the mean of its divisors is an integer number (270986853).

Almost surely, 2^1083947406 is an apocalyptic number.

1083947406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1083947406 is a wasteful number, since it uses less digits than its factorization.

1083947406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180657906.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1083947406 is about 32923.3565421267. The cubic root of 1083947406 is about 1027.2340424958.

The spelling of 1083947406 in words is "one billion, eighty-three million, nine hundred forty-seven thousand, four hundred six".