47778162 has 16 divisors (see below), whose sum is σ = 96310272. Its totient is φ = 15800400.

The previous prime is 47778139. The next prime is 47778187. The reversal of 47778162 is 26187774.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30589 + ... + 32112.

It is an arithmetic number, because the mean of its divisors is an integer number (6019392).

Almost surely, 2^47778162 is an apocalyptic number.

47778162 is an abundant number, since it is smaller than the sum of its proper divisors (48532110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47778162 is a wasteful number, since it uses less digits than its factorization.

47778162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62833.

The product of its digits is 131712, while the sum is 42.

The square root of 47778162 is about 6912.1749109813. The cubic root of 47778162 is about 362.8633838447.

The spelling of 47778162 in words is "forty-seven million, seven hundred seventy-eight thousand, one hundred sixty-two".