30874399 has 2 divisors, whose sum is σ = 30874400. Its totient is φ = 30874398.

The previous prime is 30874381. The next prime is 30874409. The reversal of 30874399 is 99347803.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30874399 - 2¹⁵ = 30841631 is a prime.

It is a super-2 number, since 2×30874399² = 1906457027222402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30874309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15437199 + 15437200.

It is an arithmetic number, because the mean of its divisors is an integer number (15437200).

Almost surely, 2^30874399 is an apocalyptic number.

30874399 is a deficient number, since it is larger than the sum of its proper divisors (1).

30874399 is an equidigital number, since it uses as much as digits as its factorization.

30874399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 30874399 is about 5556.4736119233. The cubic root of 30874399 is about 313.7132323067.

The spelling of 30874399 in words is "thirty million, eight hundred seventy-four thousand, three hundred ninety-nine".