30669047 has 2 divisors, whose sum is σ = 30669048. Its totient is φ = 30669046.

The previous prime is 30669043. The next prime is 30669053. The reversal of 30669047 is 74096603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30669047 - 2² = 30669043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30668998 and 30669016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30669043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334523 + 15334524.

It is an arithmetic number, because the mean of its divisors is an integer number (15334524).

Almost surely, 2^30669047 is an apocalyptic number.

30669047 is a deficient number, since it is larger than the sum of its proper divisors (1).

30669047 is an equidigital number, since it uses as much as digits as its factorization.

30669047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 30669047 is about 5537.9641566193. The cubic root of 30669047 is about 313.0161607405.

The spelling of 30669047 in words is "thirty million, six hundred sixty-nine thousand, forty-seven".