30880047 has 24 divisors (see below), whose sum is σ = 45775408. Its totient is φ = 18501120.

The previous prime is 30880033. The next prime is 30880049. The reversal of 30880047 is 74008803.

It is not a de Polignac number, because 30880047 - 2¹² = 30875951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30879996 and 30880023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30880049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34773 + ... + 35649.

Almost surely, 2^30880047 is an apocalyptic number.

30880047 is a deficient number, since it is larger than the sum of its proper divisors (14895361).

30880047 is a wasteful number, since it uses less digits than its factorization.

30880047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 30880047 is about 5556.9818246958. The cubic root of 30880047 is about 313.7323608227.

The spelling of 30880047 in words is "thirty million, eight hundred eighty thousand, forty-seven".