736786081 has 2 divisors, whose sum is σ = 736786082. Its totient is φ = 736786080.

The previous prime is 736786079. The next prime is 736786109. The reversal of 736786081 is 180687637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 527115681 + 209670400 = 22959^2 + 14480^2 .

It is a cyclic number.

It is not a de Polignac number, because 736786081 - 2¹ = 736786079 is a prime.

It is a super-2 number, since 2×736786081² = 1085707458310677122, which contains 22 as substring.

Together with 736786079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (736786181) 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 as a sum of consecutive naturals, namely, 368393040 + 368393041.

It is an arithmetic number, because the mean of its divisors is an integer number (368393041).

Almost surely, 2^736786081 is an apocalyptic number.

It is an amenable number.

736786081 is a deficient number, since it is larger than the sum of its proper divisors (1).

736786081 is an equidigital number, since it uses as much as digits as its factorization.

736786081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 736786081 is about 27143.8037312386. The cubic root of 736786081 is about 903.1928084701.

The spelling of 736786081 in words is "seven hundred thirty-six million, seven hundred eighty-six thousand, eighty-one".