30678663 has 4 divisors (see below), whose sum is σ = 40904888. Its totient is φ = 20452440.

The previous prime is 30678629. The next prime is 30678667. The reversal of 30678663 is 36687603.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30678663 - 2¹⁴ = 30662279 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 (30678667) 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, 5113108 + ... + 5113113.

It is an arithmetic number, because the mean of its divisors is an integer number (10226222).

Almost surely, 2^30678663 is an apocalyptic number.

30678663 is a deficient number, since it is larger than the sum of its proper divisors (10226225).

30678663 is a wasteful number, since it uses less digits than its factorization.

30678663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10226224.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 30678663 is about 5538.8322776556. The cubic root of 30678663 is about 313.0488717762.

The spelling of 30678663 in words is "thirty million, six hundred seventy-eight thousand, six hundred sixty-three".