47163730 has 8 divisors (see below), whose sum is σ = 84894732. Its totient is φ = 18865488.

The previous prime is 47163709. The next prime is 47163749. The reversal of 47163730 is 3736174.

It can be written as a sum of positive squares in 2 ways, for example, as 46936201 + 227529 = 6851^2 + 477^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 47163692 and 47163701.

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, 2358177 + ... + 2358196.

Almost surely, 2^47163730 is an apocalyptic number.

47163730 is a deficient number, since it is larger than the sum of its proper divisors (37731002).

47163730 is a wasteful number, since it uses less digits than its factorization.

47163730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716380.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 47163730 is about 6867.5854563303. The cubic root of 47163730 is about 361.3011812718.

The spelling of 47163730 in words is "forty-seven million, one hundred sixty-three thousand, seven hundred thirty".