30472117 has 8 divisors (see below), whose sum is σ = 33232640. Its totient is φ = 27771120.

The previous prime is 30472103. The next prime is 30472133. The reversal of 30472117 is 71127403.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-30472117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30472091 and 30472100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472147) 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, 13809 + ... + 15862.

It is an arithmetic number, because the mean of its divisors is an integer number (4154080).

Almost surely, 2^30472117 is an apocalyptic number.

It is an amenable number.

30472117 is a deficient number, since it is larger than the sum of its proper divisors (2760523).

30472117 is a wasteful number, since it uses less digits than its factorization.

30472117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29763.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 30472117 is about 5520.1555231714. The cubic root of 30472117 is about 312.3447489102.

The spelling of 30472117 in words is "thirty million, four hundred seventy-two thousand, one hundred seventeen".