806691293 has 8 divisors (see below), whose sum is σ = 861704568. Its totient is φ = 752518144.

The previous prime is 806691287. The next prime is 806691307. The reversal of 806691293 is 392196608.

It can be written as a sum of positive squares in 4 ways, for example, as 15225604 + 791465689 = 3902^2 + 28133^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 806691293 - 2¹⁴ = 806674909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806691253) 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 7 ways as a sum of consecutive naturals, for example, 208046 + ... + 211887.

It is an arithmetic number, because the mean of its divisors is an integer number (107713071).

Almost surely, 2^806691293 is an apocalyptic number.

It is an amenable number.

806691293 is a deficient number, since it is larger than the sum of its proper divisors (55013275).

806691293 is a wasteful number, since it uses less digits than its factorization.

806691293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420063.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 806691293 is about 28402.3114024193. The cubic root of 806691293 is about 930.8987700107.

The spelling of 806691293 in words is "eight hundred six million, six hundred ninety-one thousand, two hundred ninety-three".