30623849 has 2 divisors, whose sum is σ = 30623850. Its totient is φ = 30623848.

The previous prime is 30623779. The next prime is 30623893. The reversal of 30623849 is 94832603.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29106025 + 1517824 = 5395^2 + 1232^2 .

It is a cyclic number.

It is not a de Polignac number, because 30623849 - 2¹⁶ = 30558313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30623899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15311924 + 15311925.

It is an arithmetic number, because the mean of its divisors is an integer number (15311925).

Almost surely, 2^30623849 is an apocalyptic number.

It is an amenable number.

30623849 is a deficient number, since it is larger than the sum of its proper divisors (1).

30623849 is an equidigital number, since it uses as much as digits as its factorization.

30623849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 30623849 is about 5533.8819105579. The cubic root of 30623849 is about 312.8623176805.

The spelling of 30623849 in words is "thirty million, six hundred twenty-three thousand, eight hundred forty-nine".