30672893 has 2 divisors, whose sum is σ = 30672894. Its totient is φ = 30672892.

The previous prime is 30672853. The next prime is 30672931. The reversal of 30672893 is 39827603.

It is an a-pointer prime, because the next prime (30672931) can be obtained adding 30672893 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30228004 + 444889 = 5498^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 30672893 - 2¹⁰ = 30671869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30672853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15336446 + 15336447.

It is an arithmetic number, because the mean of its divisors is an integer number (15336447).

Almost surely, 2^30672893 is an apocalyptic number.

It is an amenable number.

30672893 is a deficient number, since it is larger than the sum of its proper divisors (1).

30672893 is an equidigital number, since it uses as much as digits as its factorization.

30672893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 30672893 is about 5538.3113852509. The cubic root of 30672893 is about 313.0292446144.

The spelling of 30672893 in words is "thirty million, six hundred seventy-two thousand, eight hundred ninety-three".