49683978 has 12 divisors (see below), whose sum is σ = 107648658. Its totient is φ = 16561320.

The previous prime is 49683947. The next prime is 49684001. The reversal of 49683978 is 87938694.

49683978 is a `hidden beast` number, since 496 + 83 + 9 + 78 = 666.

49683978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46009089 + 3674889 = 6783^2 + 1917^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1380093 + ... + 1380128.

Almost surely, 2^49683978 is an apocalyptic number.

49683978 is an abundant number, since it is smaller than the sum of its proper divisors (57964680).

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

49683978 is a wasteful number, since it uses less digits than its factorization.

49683978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760229 (or 2760226 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 49683978 is about 7048.6862605737. The cubic root of 49683978 is about 367.6253522125.

The spelling of 49683978 in words is "forty-nine million, six hundred eighty-three thousand, nine hundred seventy-eight".