30660349 has 2 divisors, whose sum is σ = 30660350. Its totient is φ = 30660348.

The previous prime is 30660347. The next prime is 30660379. The reversal of 30660349 is 94306603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17388900 + 13271449 = 4170^2 + 3643^2 .

It is a cyclic number.

It is not a de Polignac number, because 30660349 - 2¹ = 30660347 is a prime.

Together with 30660347, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30660349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30660347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15330174 + 15330175.

It is an arithmetic number, because the mean of its divisors is an integer number (15330175).

Almost surely, 2^30660349 is an apocalyptic number.

It is an amenable number.

30660349 is a deficient number, since it is larger than the sum of its proper divisors (1).

30660349 is an equidigital number, since it uses as much as digits as its factorization.

30660349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 30660349 is about 5537.1787942959. The cubic root of 30660349 is about 312.9865666029.

The spelling of 30660349 in words is "thirty million, six hundred sixty thousand, three hundred forty-nine".