30836493 has 6 divisors (see below), whose sum is σ = 44541614. Its totient is φ = 20557656.

The previous prime is 30836431. The next prime is 30836501. The reversal of 30836493 is 39463803.

30836493 is a `hidden beast` number, since 3 + 0 + 8 + 3 + 649 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24621444 + 6215049 = 4962^2 + 2493^2 .

It is not a de Polignac number, because 30836493 - 2⁸ = 30836237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30836093) 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 5 ways as a sum of consecutive naturals, for example, 1713130 + ... + 1713147.

Almost surely, 2^30836493 is an apocalyptic number.

It is an amenable number.

30836493 is a deficient number, since it is larger than the sum of its proper divisors (13705121).

30836493 is a wasteful number, since it uses less digits than its factorization.

30836493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426283 (or 3426280 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 30836493 is about 5553.0615879891. The cubic root of 30836493 is about 313.5847927351.

It can be divided in two parts, 30836 and 493, that added together give a square (31329 = 177²).

The spelling of 30836493 in words is "thirty million, eight hundred thirty-six thousand, four hundred ninety-three".