30313947 has 8 divisors (see below), whose sum is σ = 40988160. Its totient is φ = 19924520.

The previous prime is 30313937. The next prime is 30313957. The reversal of 30313947 is 74931303.

It is an interprime number because it is at equal distance from previous prime (30313937) and next prime (30313957).

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

It is a cyclic number.

It is not a de Polignac number, because 30313947 - 2¹⁹ = 29789659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30313937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70947 + ... + 71372.

It is an arithmetic number, because the mean of its divisors is an integer number (5123520).

Almost surely, 2^30313947 is an apocalyptic number.

30313947 is a deficient number, since it is larger than the sum of its proper divisors (10674213).

30313947 is a wasteful number, since it uses less digits than its factorization.

30313947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142393.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 30313947 is about 5505.8102945888. The cubic root of 30313947 is about 311.8033873860.

The spelling of 30313947 in words is "thirty million, three hundred thirteen thousand, nine hundred forty-seven".