676774645 has 8 divisors (see below), whose sum is σ = 812611800. Its totient is φ = 541098240.

The previous prime is 676774619. The next prime is 676774673. The reversal of 676774645 is 546477676.

676774645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65399569 + 611375076 = 8087^2 + 24726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-676774645 is a prime.

It is a super-2 number, since 2×676774645² = 916047840229752050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 676774592 and 676774601.

It is a congruent 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, 30720 + ... + 47929.

It is an arithmetic number, because the mean of its divisors is an integer number (101576475).

Almost surely, 2^676774645 is an apocalyptic number.

It is an amenable number.

676774645 is a deficient number, since it is larger than the sum of its proper divisors (135837155).

676774645 is a wasteful number, since it uses less digits than its factorization.

676774645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80375.

The product of its digits is 5927040, while the sum is 52.

The square root of 676774645 is about 26014.8927539592. The cubic root of 676774645 is about 877.9734033209.

The spelling of 676774645 in words is "six hundred seventy-six million, seven hundred seventy-four thousand, six hundred forty-five".