30771207 has 12 divisors (see below), whose sum is σ = 47062080. Its totient is φ = 19307328.

The previous prime is 30771163. The next prime is 30771227. The reversal of 30771207 is 70217703.

It is not a de Polignac number, because 30771207 - 2¹² = 30767111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30771227) 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 11 ways as a sum of consecutive naturals, for example, 100407 + ... + 100712.

It is an arithmetic number, because the mean of its divisors is an integer number (3921840).

Almost surely, 2^30771207 is an apocalyptic number.

30771207 is a deficient number, since it is larger than the sum of its proper divisors (16290873).

30771207 is a wasteful number, since it uses less digits than its factorization.

30771207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201142 (or 201139 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 30771207 is about 5547.1800944264. The cubic root of 30771207 is about 313.3633325988.

The spelling of 30771207 in words is "thirty million, seven hundred seventy-one thousand, two hundred seven".