30768865 has 8 divisors (see below), whose sum is σ = 37781568. Its totient is φ = 24042480.

The previous prime is 30768853. The next prime is 30768869. The reversal of 30768865 is 56886703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30768865 - 2¹³ = 30760673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30768869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71341 + ... + 71770.

It is an arithmetic number, because the mean of its divisors is an integer number (4722696).

Almost surely, 2^30768865 is an apocalyptic number.

It is an amenable number.

30768865 is a deficient number, since it is larger than the sum of its proper divisors (7012703).

30768865 is a wasteful number, since it uses less digits than its factorization.

30768865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143159.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 30768865 is about 5546.9689921614. The cubic root of 30768865 is about 313.3553823577.

The spelling of 30768865 in words is "thirty million, seven hundred sixty-eight thousand, eight hundred sixty-five".