49786890 has 32 divisors (see below), whose sum is σ = 120026880. Its totient is φ = 13216704.

The previous prime is 49786879. The next prime is 49786907. The reversal of 49786890 is 9868794.

It is a happy number.

49786890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 3247 + ... + 10493.

It is an arithmetic number, because the mean of its divisors is an integer number (3750840).

Almost surely, 2^49786890 is an apocalyptic number.

49786890 is an abundant number, since it is smaller than the sum of its proper divisors (70239990).

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

49786890 is a wasteful number, since it uses less digits than its factorization.

49786890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 49786890 is about 7055.9825680057. The cubic root of 49786890 is about 367.8790018475.

The spelling of 49786890 in words is "forty-nine million, seven hundred eighty-six thousand, eight hundred ninety".