30494687 has 2 divisors, whose sum is σ = 30494688. Its totient is φ = 30494686.

The previous prime is 30494683. The next prime is 30494729. The reversal of 30494687 is 78649403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30494687 - 2² = 30494683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30494683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15247343 + 15247344.

It is an arithmetic number, because the mean of its divisors is an integer number (15247344).

Almost surely, 2^30494687 is an apocalyptic number.

30494687 is a deficient number, since it is larger than the sum of its proper divisors (1).

30494687 is an equidigital number, since it uses as much as digits as its factorization.

30494687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 30494687 is about 5522.1994712252. The cubic root of 30494687 is about 312.4218454156.

The spelling of 30494687 in words is "thirty million, four hundred ninety-four thousand, six hundred eighty-seven".