30863745 has 24 divisors (see below), whose sum is σ = 58361472. Its totient is φ = 14964000.

The previous prime is 30863689. The next prime is 30863747. The reversal of 30863745 is 54736803.

It is a happy number.

It is not a de Polignac number, because 30863745 - 2⁹ = 30863233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30863747) 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 23 ways as a sum of consecutive naturals, for example, 30681 + ... + 31670.

It is an arithmetic number, because the mean of its divisors is an integer number (2431728).

Almost surely, 2^30863745 is an apocalyptic number.

It is an amenable number.

30863745 is a deficient number, since it is larger than the sum of its proper divisors (27497727).

30863745 is a wasteful number, since it uses less digits than its factorization.

30863745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62373 (or 62370 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 30863745 is about 5555.5148276285. The cubic root of 30863745 is about 313.6771432339.

The spelling of 30863745 in words is "thirty million, eight hundred sixty-three thousand, seven hundred forty-five".