48971778 has 32 divisors (see below), whose sum is σ = 106660800. Its totient is φ = 14930496.

The previous prime is 48971777. The next prime is 48971789. The reversal of 48971778 is 87717984.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 48971778.

It is not an unprimeable number, because it can be changed into a prime (48971771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4101 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (3333150).

Almost surely, 2^48971778 is an apocalyptic number.

48971778 is an abundant number, since it is smaller than the sum of its proper divisors (57689022).

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

48971778 is a wasteful number, since it uses less digits than its factorization.

48971778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14866.

The product of its digits is 790272, while the sum is 51.

The square root of 48971778 is about 6997.9838525107. The cubic root of 48971778 is about 365.8603038192.

The spelling of 48971778 in words is "forty-eight million, nine hundred seventy-one thousand, seven hundred seventy-eight".