678770535 has 16 divisors (see below), whose sum is σ = 1143192960. Its totient is φ = 342957600.

The previous prime is 678770531. The next prime is 678770551. The reversal of 678770535 is 535077876.

It is not a de Polignac number, because 678770535 - 2² = 678770531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678770531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190541 + ... + 1191110.

It is an arithmetic number, because the mean of its divisors is an integer number (71449560).

Almost surely, 2^678770535 is an apocalyptic number.

678770535 is a deficient number, since it is larger than the sum of its proper divisors (464422425).

678770535 is a wasteful number, since it uses less digits than its factorization.

678770535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381678.

The product of its (nonzero) digits is 1234800, while the sum is 48.

The square root of 678770535 is about 26053.2250402901. The cubic root of 678770535 is about 878.8356393924.

The spelling of 678770535 in words is "six hundred seventy-eight million, seven hundred seventy thousand, five hundred thirty-five".