1071684433 has 8 divisors (see below), whose sum is σ = 1095978600. Its totient is φ = 1047541248.

The previous prime is 1071684389. The next prime is 1071684557. The reversal of 1071684433 is 3344861701.

It can be written as a sum of positive squares in 4 ways, for example, as 102171664 + 969512769 = 10108^2 + 31137^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071684433 is a prime.

It is a super-2 number, since 2×1071684433² = 2297015047869062978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1071684392 and 1071684401.

It is not an unprimeable number, because it can be changed into a prime (1071682433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23328 + ... + 51841.

It is an arithmetic number, because the mean of its divisors is an integer number (136997325).

Almost surely, 2^1071684433 is an apocalyptic number.

It is an amenable number.

1071684433 is a deficient number, since it is larger than the sum of its proper divisors (24294167).

1071684433 is an equidigital number, since it uses as much as digits as its factorization.

1071684433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75491.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1071684433 is about 32736.5916521558. The cubic root of 1071684433 is about 1023.3455548437.

The spelling of 1071684433 in words is "one billion, seventy-one million, six hundred eighty-four thousand, four hundred thirty-three".