30975794 has 4 divisors (see below), whose sum is σ = 46463694. Its totient is φ = 15487896.

The previous prime is 30975761. The next prime is 30975803. The reversal of 30975794 is 49757903.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 24137569 + 6838225 = 4913^2 + 2615^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7743947 + ... + 7743950.

Almost surely, 2^30975794 is an apocalyptic number.

30975794 is a deficient number, since it is larger than the sum of its proper divisors (15487900).

30975794 is a wasteful number, since it uses less digits than its factorization.

30975794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487899.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 30975794 is about 5565.5901753543. The cubic root of 30975794 is about 314.0562802280.

The spelling of 30975794 in words is "thirty million, nine hundred seventy-five thousand, seven hundred ninety-four".