678480735 has 16 divisors (see below), whose sum is σ = 1103366880. Its totient is φ = 355923840.

The previous prime is 678480697. The next prime is 678480739. The reversal of 678480735 is 537084876.

It is not a de Polignac number, because 678480735 - 2¹⁸ = 678218591 is a prime.

It is a super-2 number, since 2×678480735² = 920672215532280450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678480739) 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, 369840 + ... + 371669.

It is an arithmetic number, because the mean of its divisors is an integer number (68960430).

Almost surely, 2^678480735 is an apocalyptic number.

678480735 is a deficient number, since it is larger than the sum of its proper divisors (424886145).

678480735 is a wasteful number, since it uses less digits than its factorization.

678480735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741578.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 678480735 is about 26047.6627550343. The cubic root of 678480735 is about 878.7105490957.

The spelling of 678480735 in words is "six hundred seventy-eight million, four hundred eighty thousand, seven hundred thirty-five".