48891790 has 16 divisors (see below), whose sum is σ = 91831968. Its totient is φ = 18706336.

The previous prime is 48891781. The next prime is 48891827. The reversal of 48891790 is 9719884.

It is a happy number.

48891790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 48891790.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 106057 + ... + 106516.

It is an arithmetic number, because the mean of its divisors is an integer number (5739498).

Almost surely, 2^48891790 is an apocalyptic number.

48891790 is a deficient number, since it is larger than the sum of its proper divisors (42940178).

48891790 is a wasteful number, since it uses less digits than its factorization.

48891790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212603.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 48891790 is about 6992.2664422918. The cubic root of 48891790 is about 365.6610027615.

The spelling of 48891790 in words is "forty-eight million, eight hundred ninety-one thousand, seven hundred ninety".