30481967 has 2 divisors, whose sum is σ = 30481968. Its totient is φ = 30481966.

The previous prime is 30481949. The next prime is 30481993. The reversal of 30481967 is 76918403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30481967 - 2²⁴ = 13704751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30481967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30481907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15240983 + 15240984.

It is an arithmetic number, because the mean of its divisors is an integer number (15240984).

Almost surely, 2^30481967 is an apocalyptic number.

30481967 is a deficient number, since it is larger than the sum of its proper divisors (1).

30481967 is an equidigital number, since it uses as much as digits as its factorization.

30481967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 30481967 is about 5521.0476360923. The cubic root of 30481967 is about 312.3784000492.

The spelling of 30481967 in words is "thirty million, four hundred eighty-one thousand, nine hundred sixty-seven".