47618986 has 16 divisors (see below), whose sum is σ = 74082600. Its totient is φ = 22929088.

The previous prime is 47618981. The next prime is 47619049. The reversal of 47618986 is 68981674.

It can be written as a sum of positive squares in 4 ways, for example, as 46580625 + 1038361 = 6825^2 + 1019^2 .

It is not an unprimeable number, because it can be changed into a prime (47618981) 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, 28716 + ... + 30328.

Almost surely, 2^47618986 is an apocalyptic number.

47618986 is a deficient number, since it is larger than the sum of its proper divisors (26463614).

47618986 is a wasteful number, since it uses less digits than its factorization.

47618986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its digits is 580608, while the sum is 49.

The square root of 47618986 is about 6900.6511286979. The cubic root of 47618986 is about 362.4599679931.

The spelling of 47618986 in words is "forty-seven million, six hundred eighteen thousand, nine hundred eighty-six".