687411199 has 2 divisors, whose sum is σ = 687411200. Its totient is φ = 687411198.

The previous prime is 687411181. The next prime is 687411211. The reversal of 687411199 is 991114786.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-687411199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687411299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343705599 + 343705600.

It is an arithmetic number, because the mean of its divisors is an integer number (343705600).

Almost surely, 2^687411199 is an apocalyptic number.

687411199 is a deficient number, since it is larger than the sum of its proper divisors (1).

687411199 is an equidigital number, since it uses as much as digits as its factorization.

687411199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 46.

The square root of 687411199 is about 26218.5277809415. The cubic root of 687411199 is about 882.5490823817.

The spelling of 687411199 in words is "six hundred eighty-seven million, four hundred eleven thousand, one hundred ninety-nine".