30470997 has 8 divisors (see below), whose sum is σ = 41234656. Its totient is φ = 20010672.

The previous prime is 30470971. The next prime is 30471013. The reversal of 30470997 is 79907403.

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

It is not a de Polignac number, because 30470997 - 2¹⁰ = 30469973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30470197) 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, 75598 + ... + 75999.

It is an arithmetic number, because the mean of its divisors is an integer number (5154332).

Almost surely, 2^30470997 is an apocalyptic number.

It is an amenable number.

30470997 is a deficient number, since it is larger than the sum of its proper divisors (10763659).

30470997 is a wasteful number, since it uses less digits than its factorization.

30470997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151667.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 30470997 is about 5520.0540758221. The cubic root of 30470997 is about 312.3409221286.

The spelling of 30470997 in words is "thirty million, four hundred seventy thousand, nine hundred ninety-seven".