30782065 has 8 divisors (see below), whose sum is σ = 37297728. Its totient is φ = 24386160.

The previous prime is 30782041. The next prime is 30782069. The reversal of 30782065 is 56028703.

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

It is not a de Polignac number, because 30782065 - 2¹¹ = 30780017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30782069) 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, 29371 + ... + 30400.

It is an arithmetic number, because the mean of its divisors is an integer number (4662216).

Almost surely, 2^30782065 is an apocalyptic number.

It is an amenable number.

30782065 is a deficient number, since it is larger than the sum of its proper divisors (6515663).

30782065 is a wasteful number, since it uses less digits than its factorization.

30782065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59879.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 30782065 is about 5548.1587035700. The cubic root of 30782065 is about 313.4001863036.

The spelling of 30782065 in words is "thirty million, seven hundred eighty-two thousand, sixty-five".