30663047 has 4 divisors (see below), whose sum is σ = 31491816. Its totient is φ = 29834280.

The previous prime is 30663043. The next prime is 30663091. The reversal of 30663047 is 74036603.

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

It is a cyclic number.

It is not a de Polignac number, because 30663047 - 2² = 30663043 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 (30663043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414329 + ... + 414402.

It is an arithmetic number, because the mean of its divisors is an integer number (7872954).

Almost surely, 2^30663047 is an apocalyptic number.

30663047 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30663047 is a deficient number, since it is larger than the sum of its proper divisors (828769).

30663047 is an equidigital number, since it uses as much as digits as its factorization.

30663047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828768.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 30663047 is about 5537.4224148064. The cubic root of 30663047 is about 312.9957468962.

The spelling of 30663047 in words is "thirty million, six hundred sixty-three thousand, forty-seven".