687774301 has 2 divisors, whose sum is σ = 687774302. Its totient is φ = 687774300.

The previous prime is 687774259. The next prime is 687774317. The reversal of 687774301 is 103477786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607671801 + 80102500 = 24651^2 + 8950^2 .

It is a cyclic number.

It is not a de Polignac number, because 687774301 - 2⁹ = 687773789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687774601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343887150 + 343887151.

It is an arithmetic number, because the mean of its divisors is an integer number (343887151).

Almost surely, 2^687774301 is an apocalyptic number.

It is an amenable number.

687774301 is a deficient number, since it is larger than the sum of its proper divisors (1).

687774301 is an equidigital number, since it uses as much as digits as its factorization.

687774301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 687774301 is about 26225.4513974498. The cubic root of 687774301 is about 882.7044473853.

The spelling of 687774301 in words is "six hundred eighty-seven million, seven hundred seventy-four thousand, three hundred one".