30874937 has 4 divisors (see below), whose sum is σ = 31939620. Its totient is φ = 29810256.

The previous prime is 30874933. The next prime is 30874939. The reversal of 30874937 is 73947803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5180176 + 25694761 = 2276^2 + 5069^2 .

It is a cyclic number.

It is not a de Polignac number, because 30874937 - 2² = 30874933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30874894 and 30874903.

It is not an unprimeable number, because it can be changed into a prime (30874933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532298 + ... + 532355.

It is an arithmetic number, because the mean of its divisors is an integer number (7984905).

Almost surely, 2^30874937 is an apocalyptic number.

It is an amenable number.

30874937 is a deficient number, since it is larger than the sum of its proper divisors (1064683).

30874937 is a wasteful number, since it uses less digits than its factorization.

30874937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064682.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 30874937 is about 5556.5220237123. The cubic root of 30874937 is about 313.7150544932.

The spelling of 30874937 in words is "thirty million, eight hundred seventy-four thousand, nine hundred thirty-seven".