47578719 has 8 divisors (see below), whose sum is σ = 64478512. Its totient is φ = 31199040.

The previous prime is 47578703. The next prime is 47578757. The reversal of 47578719 is 91787574.

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

It is not a de Polignac number, because 47578719 - 2⁴ = 47578703 is a prime.

It is a super-2 number, since 2×47578719² = 4527469003361922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47578759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129814 + ... + 130179.

It is an arithmetic number, because the mean of its divisors is an integer number (8059814).

Almost surely, 2^47578719 is an apocalyptic number.

47578719 is a deficient number, since it is larger than the sum of its proper divisors (16899793).

47578719 is a wasteful number, since it uses less digits than its factorization.

47578719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260057.

The product of its digits is 493920, while the sum is 48.

The square root of 47578719 is about 6897.7328884207. The cubic root of 47578719 is about 362.3577728211.

The spelling of 47578719 in words is "forty-seven million, five hundred seventy-eight thousand, seven hundred nineteen".