30874919 has 2 divisors, whose sum is σ = 30874920. Its totient is φ = 30874918.

The previous prime is 30874913. The next prime is 30874933. The reversal of 30874919 is 91947803.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30874919 - 2⁸ = 30874663 is a prime.

It is a super-2 number, since 2×30874919² = 1906521246513122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30874913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15437459 + 15437460.

It is an arithmetic number, because the mean of its divisors is an integer number (15437460).

Almost surely, 2^30874919 is an apocalyptic number.

30874919 is a deficient number, since it is larger than the sum of its proper divisors (1).

30874919 is an equidigital number, since it uses as much as digits as its factorization.

30874919 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 41.

The square root of 30874919 is about 5556.5204039939. The cubic root of 30874919 is about 313.7149935282.

The spelling of 30874919 in words is "thirty million, eight hundred seventy-four thousand, nine hundred nineteen".