47779216 has 10 divisors (see below), whose sum is σ = 92572262. Its totient is φ = 23889600.

The previous prime is 47779189. The next prime is 47779219. The reversal of 47779216 is 61297774.

It can be written as a sum of positive squares in only one way, i.e., 29116816 + 18662400 = 5396^2 + 4320^2 .

It is not an unprimeable number, because it can be changed into a prime (47779219) 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 as a sum of consecutive naturals, namely, 1493085 + ... + 1493116.

Almost surely, 2^47779216 is an apocalyptic number.

It is an amenable number.

47779216 is a deficient number, since it is larger than the sum of its proper divisors (44793046).

47779216 is a wasteful number, since it uses less digits than its factorization.

47779216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986209 (or 2986203 counting only the distinct ones).

The product of its digits is 148176, while the sum is 43.

The square root of 47779216 is about 6912.2511528445. The cubic root of 47779216 is about 362.8660521153.

The spelling of 47779216 in words is "forty-seven million, seven hundred seventy-nine thousand, two hundred sixteen".