30663967 has 8 divisors (see below), whose sum is σ = 32380400. Its totient is φ = 28957824.

The previous prime is 30663947. The next prime is 30663973. The reversal of 30663967 is 76936603.

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

It is not a de Polignac number, because 30663967 - 2¹⁹ = 30139679 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 (30663947) 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, 4009 + ... + 8797.

It is an arithmetic number, because the mean of its divisors is an integer number (4047550).

Almost surely, 2^30663967 is an apocalyptic number.

30663967 is a deficient number, since it is larger than the sum of its proper divisors (1716433).

30663967 is a wasteful number, since it uses less digits than its factorization.

30663967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145.

The product of its (nonzero) digits is 122472, while the sum is 40.

The square root of 30663967 is about 5537.5054853246. The cubic root of 30663967 is about 312.9988771918.

The spelling of 30663967 in words is "thirty million, six hundred sixty-three thousand, nine hundred sixty-seven".