30500983 has 2 divisors, whose sum is σ = 30500984. Its totient is φ = 30500982.

The previous prime is 30500969. The next prime is 30500989. The reversal of 30500983 is 38900503.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (38900503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30500983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30500989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250491 + 15250492.

It is an arithmetic number, because the mean of its divisors is an integer number (15250492).

Almost surely, 2^30500983 is an apocalyptic number.

30500983 is a deficient number, since it is larger than the sum of its proper divisors (1).

30500983 is an equidigital number, since it uses as much as digits as its factorization.

30500983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 30500983 is about 5522.7695045149. The cubic root of 30500983 is about 312.4433450360.

The spelling of 30500983 in words is "thirty million, five hundred thousand, nine hundred eighty-three".