30616493 has 2 divisors, whose sum is σ = 30616494. Its totient is φ = 30616492.

The previous prime is 30616483. The next prime is 30616517. The reversal of 30616493 is 39461603.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 289444 = 5507^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 30616493 - 2⁴ = 30616477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30616483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15308246 + 15308247.

It is an arithmetic number, because the mean of its divisors is an integer number (15308247).

Almost surely, 2^30616493 is an apocalyptic number.

It is an amenable number.

30616493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30616493 is an equidigital number, since it uses as much as digits as its factorization.

30616493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30616493 is about 5533.2172377379. The cubic root of 30616493 is about 312.8372653158.

The spelling of 30616493 in words is "thirty million, six hundred sixteen thousand, four hundred ninety-three".