677681330 has 16 divisors (see below), whose sum is σ = 1239824664. Its totient is φ = 266628480.

The previous prime is 677681327. The next prime is 677681351. The reversal of 677681330 is 33186776.

It can be written as a sum of positive squares in 4 ways, for example, as 511709641 + 165971689 = 22621^2 + 12883^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554867 + ... + 556086.

Almost surely, 2^677681330 is an apocalyptic number.

677681330 is a deficient number, since it is larger than the sum of its proper divisors (562143334).

677681330 is a wasteful number, since it uses less digits than its factorization.

677681330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111021.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 677681330 is about 26032.3131895727. The cubic root of 677681330 is about 878.3653063441.

The spelling of 677681330 in words is "six hundred seventy-seven million, six hundred eighty-one thousand, three hundred thirty".