104778487 has 16 divisors (see below), whose sum is σ = 120143232. Its totient is φ = 90508320.

The previous prime is 104778467. The next prime is 104778517. The reversal of 104778487 is 784877401.

It is a cyclic number.

It is not a de Polignac number, because 104778487 - 2¹¹ = 104776439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104778467) 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, 14508 + ... + 20494.

It is an arithmetic number, because the mean of its divisors is an integer number (7508952).

Almost surely, 2^104778487 is an apocalyptic number.

104778487 is a deficient number, since it is larger than the sum of its proper divisors (15364745).

104778487 is a wasteful number, since it uses less digits than its factorization.

104778487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6078.

The product of its (nonzero) digits is 351232, while the sum is 46.

The square root of 104778487 is about 10236.1363316439. The cubic root of 104778487 is about 471.4374087328.

The spelling of 104778487 in words is "one hundred four million, seven hundred seventy-eight thousand, four hundred eighty-seven".