47818479 has 8 divisors (see below), whose sum is σ = 63976752. Its totient is φ = 31769600.

The previous prime is 47818469. The next prime is 47818481. The reversal of 47818479 is 97481874.

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 47818479 - 2¹² = 47814383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47818469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26322 + ... + 28079.

It is an arithmetic number, because the mean of its divisors is an integer number (7997094).

Almost surely, 2^47818479 is an apocalyptic number.

47818479 is a deficient number, since it is larger than the sum of its proper divisors (16158273).

47818479 is a wasteful number, since it uses less digits than its factorization.

47818479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54697.

The product of its digits is 451584, while the sum is 48.

The square root of 47818479 is about 6915.0906718567. The cubic root of 47818479 is about 362.9654210472.

The spelling of 47818479 in words is "forty-seven million, eight hundred eighteen thousand, four hundred seventy-nine".