47077778 has 16 divisors (see below), whose sum is σ = 79522560. Its totient is φ = 20708400.

The previous prime is 47077769. The next prime is 47077783. The reversal of 47077778 is 87777074.

47077778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 33833 + ... + 35196.

It is an arithmetic number, because the mean of its divisors is an integer number (4970160).

Almost surely, 2^47077778 is an apocalyptic number.

47077778 is a deficient number, since it is larger than the sum of its proper divisors (32444782).

47077778 is a wasteful number, since it uses less digits than its factorization.

47077778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69073.

The product of its (nonzero) digits is 537824, while the sum is 47.

The square root of 47077778 is about 6861.3247991915. The cubic root of 47077778 is about 361.0815672941.

The spelling of 47077778 in words is "forty-seven million, seventy-seven thousand, seven hundred seventy-eight".