30770207 has 4 divisors (see below), whose sum is σ = 33137160. Its totient is φ = 28403256.

The previous prime is 30770203. The next prime is 30770231. The reversal of 30770207 is 70207703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70207703 = 41 ⋅1712383.

It is a cyclic number.

It is not a de Polignac number, because 30770207 - 2² = 30770203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30770203) 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 3 ways as a sum of consecutive naturals, for example, 1183457 + ... + 1183482.

It is an arithmetic number, because the mean of its divisors is an integer number (8284290).

Almost surely, 2^30770207 is an apocalyptic number.

30770207 is a deficient number, since it is larger than the sum of its proper divisors (2366953).

30770207 is a wasteful number, since it uses less digits than its factorization.

30770207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366952.

The product of its (nonzero) digits is 2058, while the sum is 26.

The square root of 30770207 is about 5547.0899578067. The cubic root of 30770207 is about 313.3599380106.

The spelling of 30770207 in words is "thirty million, seven hundred seventy thousand, two hundred seven".