47321630 has 8 divisors (see below), whose sum is σ = 85178952. Its totient is φ = 18928648.

The previous prime is 47321627. The next prime is 47321639. The reversal of 47321630 is 3612374.

47321630 is nontrivially palindromic in base 4.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47321630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47321639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366072 + ... + 2366091.

It is an arithmetic number, because the mean of its divisors is an integer number (10647369).

Almost surely, 2^47321630 is an apocalyptic number.

47321630 is a deficient number, since it is larger than the sum of its proper divisors (37857322).

47321630 is a wasteful number, since it uses less digits than its factorization.

47321630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732170.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 47321630 is about 6879.0718850729. The cubic root of 47321630 is about 361.7039336210.

The spelling of 47321630 in words is "forty-seven million, three hundred twenty-one thousand, six hundred thirty".