30874999 has 2 divisors, whose sum is σ = 30875000. Its totient is φ = 30874998.

The previous prime is 30874979. The next prime is 30875011. The reversal of 30874999 is 99947803.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30874999 - 2⁷ = 30874871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30874919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15437499 + 15437500.

It is an arithmetic number, because the mean of its divisors is an integer number (15437500).

Almost surely, 2^30874999 is an apocalyptic number.

30874999 is a deficient number, since it is larger than the sum of its proper divisors (1).

30874999 is an equidigital number, since it uses as much as digits as its factorization.

30874999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 30874999 is about 5556.5276027390. The cubic root of 30874999 is about 313.7152644836.

The spelling of 30874999 in words is "thirty million, eight hundred seventy-four thousand, nine hundred ninety-nine".