677615481 has 12 divisors (see below), whose sum is σ = 979969380. Its totient is φ = 451193760.

The previous prime is 677615431. The next prime is 677615501. The reversal of 677615481 is 184516776.

It can be written as a sum of positive squares in 2 ways, for example, as 412739856 + 264875625 = 20316^2 + 16275^2 .

It is not a de Polignac number, because 677615481 - 2⁶ = 677615417 is a prime.

It is a super-2 number, since 2×677615481² = 918325480181722722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (677615401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37950 + ... + 52871.

It is an arithmetic number, because the mean of its divisors is an integer number (81664115).

Almost surely, 2^677615481 is an apocalyptic number.

It is an amenable number.

677615481 is a deficient number, since it is larger than the sum of its proper divisors (302353899).

677615481 is a wasteful number, since it uses less digits than its factorization.

677615481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91656 (or 91653 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 677615481 is about 26031.0484037812. The cubic root of 677615481 is about 878.3368557297.

The spelling of 677615481 in words is "six hundred seventy-seven million, six hundred fifteen thousand, four hundred eighty-one".