30836761 has 2 divisors, whose sum is σ = 30836762. Its totient is φ = 30836760.

The previous prime is 30836749. The next prime is 30836779. The reversal of 30836761 is 16763803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 145161 = 5540^2 + 381^2 .

It is a cyclic number.

It is not a de Polignac number, because 30836761 - 2¹⁹ = 30312473 is a prime.

It is a super-2 number, since 2×30836761² = 1901811657942242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30836711) 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 as a sum of consecutive naturals, namely, 15418380 + 15418381.

It is an arithmetic number, because the mean of its divisors is an integer number (15418381).

Almost surely, 2^30836761 is an apocalyptic number.

It is an amenable number.

30836761 is a deficient number, since it is larger than the sum of its proper divisors (1).

30836761 is an equidigital number, since it uses as much as digits as its factorization.

30836761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30836761 is about 5553.0857187693. The cubic root of 30836761 is about 313.5857011878.

The spelling of 30836761 in words is "thirty million, eight hundred thirty-six thousand, seven hundred sixty-one".