806536739 has 8 divisors (see below), whose sum is σ = 816573120. Its totient is φ = 796559400.

The previous prime is 806536733. The next prime is 806536747. The reversal of 806536739 is 937635608.

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 806536739 - 2²⁸ = 538101283 is a prime.

It is a super-2 number, since 2×806536739² = 1301003022713508242, 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 = 806536693 and 806536702.

It is not an unprimeable number, because it can be changed into a prime (806536733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13052 + ... + 42230.

It is an arithmetic number, because the mean of its divisors is an integer number (102071640).

Almost surely, 2^806536739 is an apocalyptic number.

806536739 is a deficient number, since it is larger than the sum of its proper divisors (10036381).

806536739 is a wasteful number, since it uses less digits than its factorization.

806536739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29521.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 806536739 is about 28399.5904723994. The cubic root of 806536739 is about 930.8393159093.

The spelling of 806536739 in words is "eight hundred six million, five hundred thirty-six thousand, seven hundred thirty-nine".