677025040 has 20 divisors (see below), whose sum is σ = 1574083404. Its totient is φ = 270809984.

The previous prime is 677025029. The next prime is 677025053. The reversal of 677025040 is 40520776.

It can be written as a sum of positive squares in 2 ways, for example, as 501939216 + 175085824 = 22404^2 + 13232^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 677024993 and 677025011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4231327 + ... + 4231486.

Almost surely, 2^677025040 is an apocalyptic number.

It is an amenable number.

677025040 is an abundant number, since it is smaller than the sum of its proper divisors (897058364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677025040 is a wasteful number, since it uses less digits than its factorization.

677025040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8462826 (or 8462820 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 677025040 is about 26019.7048407548. The cubic root of 677025040 is about 878.0816683320.

The spelling of 677025040 in words is "six hundred seventy-seven million, twenty-five thousand, forty".