30479969 has 8 divisors (see below), whose sum is σ = 32867520. Its totient is φ = 28098576.

The previous prime is 30479951. The next prime is 30479983. The reversal of 30479969 is 96997403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30479969 is a prime.

It is a super-2 number, since 2×30479969² = 1858057020481922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30479989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18164 + ... + 19770.

It is an arithmetic number, because the mean of its divisors is an integer number (4108440).

Almost surely, 2^30479969 is an apocalyptic number.

It is an amenable number.

30479969 is a deficient number, since it is larger than the sum of its proper divisors (2387551).

30479969 is a wasteful number, since it uses less digits than its factorization.

30479969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 30479969 is about 5520.8666892074. The cubic root of 30479969 is about 312.3715747495.

The spelling of 30479969 in words is "thirty million, four hundred seventy-nine thousand, nine hundred sixty-nine".