673887511 has 16 divisors (see below), whose sum is σ = 768476160. Its totient is φ = 584948320.

The previous prime is 673887479. The next prime is 673887547. The reversal of 673887511 is 115788376.

It is not a de Polignac number, because 673887511 - 2⁵ = 673887479 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 (673887581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163170 + ... + 167248.

It is an arithmetic number, because the mean of its divisors is an integer number (48029760).

Almost surely, 2^673887511 is an apocalyptic number.

673887511 is a deficient number, since it is larger than the sum of its proper divisors (94588649).

673887511 is a wasteful number, since it uses less digits than its factorization.

673887511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766.

The product of its digits is 282240, while the sum is 46.

The square root of 673887511 is about 25959.3434239004. The cubic root of 673887511 is about 876.7231397901.

It can be divided in two parts, 6738 and 87511, that added together give a palindrome (94249).

The spelling of 673887511 in words is "six hundred seventy-three million, eight hundred eighty-seven thousand, five hundred eleven".