30872983 has 2 divisors, whose sum is σ = 30872984. Its totient is φ = 30872982.

The previous prime is 30872981. The next prime is 30872999. The reversal of 30872983 is 38927803.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30872983 - 2¹ = 30872981 is a prime.

Together with 30872981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30872981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15436491 + 15436492.

It is an arithmetic number, because the mean of its divisors is an integer number (15436492).

Almost surely, 2^30872983 is an apocalyptic number.

30872983 is a deficient number, since it is larger than the sum of its proper divisors (1).

30872983 is an equidigital number, since it uses as much as digits as its factorization.

30872983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 30872983 is about 5556.3461915183. The cubic root of 30872983 is about 313.7084362649.

The spelling of 30872983 in words is "thirty million, eight hundred seventy-two thousand, nine hundred eighty-three".