677634253 has 8 divisors (see below), whose sum is σ = 690900408. Its totient is φ = 664475904.

The previous prime is 677634247. The next prime is 677634319. The reversal of 677634253 is 352436776.

It can be written as a sum of positive squares in 4 ways, for example, as 349951849 + 327682404 = 18707^2 + 18102^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677634253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677634953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14200 + ... + 39457.

It is an arithmetic number, because the mean of its divisors is an integer number (86362551).

Almost surely, 2^677634253 is an apocalyptic number.

It is an amenable number.

677634253 is a deficient number, since it is larger than the sum of its proper divisors (13266155).

677634253 is a wasteful number, since it uses less digits than its factorization.

677634253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53903.

The product of its digits is 635040, while the sum is 43.

The square root of 677634253 is about 26031.4089707031. The cubic root of 677634253 is about 878.3449665181.

The spelling of 677634253 in words is "six hundred seventy-seven million, six hundred thirty-four thousand, two hundred fifty-three".