30642929 has 2 divisors, whose sum is σ = 30642930. Its totient is φ = 30642928.

The previous prime is 30642869. The next prime is 30643021. The reversal of 30642929 is 92924603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26801329 + 3841600 = 5177^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 30642929 - 2⁸ = 30642673 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_1895291 and since 30642929 and 1895291 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30642629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15321464 + 15321465.

It is an arithmetic number, because the mean of its divisors is an integer number (15321465).

Almost surely, 2^30642929 is an apocalyptic number.

It is an amenable number.

30642929 is a deficient number, since it is larger than the sum of its proper divisors (1).

30642929 is an equidigital number, since it uses as much as digits as its factorization.

30642929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 30642929 is about 5535.6055675960. The cubic root of 30642929 is about 312.9272798359.

The spelling of 30642929 in words is "thirty million, six hundred forty-two thousand, nine hundred twenty-nine".