678170465 has 16 divisors (see below), whose sum is σ = 935776128. Its totient is φ = 462174336.

The previous prime is 678170417. The next prime is 678170483. The reversal of 678170465 is 564071876.

It is a cyclic number.

It is not a de Polignac number, because 678170465 - 2⁸ = 678170209 is a prime.

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, 53732 + ... + 65141.

It is an arithmetic number, because the mean of its divisors is an integer number (58486008).

Almost surely, 2^678170465 is an apocalyptic number.

It is an amenable number.

678170465 is a deficient number, since it is larger than the sum of its proper divisors (257605663).

678170465 is a wasteful number, since it uses less digits than its factorization.

678170465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119048.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 678170465 is about 26041.7062613032. The cubic root of 678170465 is about 878.5765835667.

The spelling of 678170465 in words is "six hundred seventy-eight million, one hundred seventy thousand, four hundred sixty-five".