47779846 has 16 divisors (see below), whose sum is σ = 72936864. Its totient is φ = 23471424.

The previous prime is 47779841. The next prime is 47779847. The reversal of 47779846 is 64897774.

It is a junction number, because it is equal to n+sod(n) for n = 47779793 and 47779802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47779841) 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, 27376 + ... + 29068.

It is an arithmetic number, because the mean of its divisors is an integer number (4558554).

Almost surely, 2^47779846 is an apocalyptic number.

47779846 is a deficient number, since it is larger than the sum of its proper divisors (25157018).

47779846 is a wasteful number, since it uses less digits than its factorization.

47779846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its digits is 2370816, while the sum is 52.

The square root of 47779846 is about 6912.2967239551. The cubic root of 47779846 is about 362.8676469831.

The spelling of 47779846 in words is "forty-seven million, seven hundred seventy-nine thousand, eight hundred forty-six".