30747894 has 8 divisors (see below), whose sum is σ = 61495800. Its totient is φ = 10249296.

The previous prime is 30747889. The next prime is 30747901. The reversal of 30747894 is 49874703.

It is a sphenic number, since it is the product of 3 distinct primes.

30747894 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2562319 + ... + 2562330.

It is an arithmetic number, because the mean of its divisors is an integer number (7686975).

Almost surely, 2^30747894 is an apocalyptic number.

30747894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30747894 is a wasteful number, since it uses less digits than its factorization.

30747894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124654.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 30747894 is about 5545.0783583282. The cubic root of 30747894 is about 313.2841754279.

The spelling of 30747894 in words is "thirty million, seven hundred forty-seven thousand, eight hundred ninety-four".