667713368 has 32 divisors (see below), whose sum is σ = 1493026560. Its totient is φ = 273720480.

The previous prime is 667713367. The next prime is 667713373. The reversal of 667713368 is 863317766.

It is a super-2 number, since 2×667713368² = 891682283611806848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667713367) 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, 257918 + ... + 260493.

It is an arithmetic number, because the mean of its divisors is an integer number (46657080).

Almost surely, 2^667713368 is an apocalyptic number.

It is an amenable number.

667713368 is an abundant number, since it is smaller than the sum of its proper divisors (825313192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667713368 is a wasteful number, since it uses less digits than its factorization.

667713368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518447 (or 518443 counting only the distinct ones).

The product of its digits is 762048, while the sum is 47.

The square root of 667713368 is about 25840.1503091604. The cubic root of 667713368 is about 874.0374145933.

The spelling of 667713368 in words is "six hundred sixty-seven million, seven hundred thirteen thousand, three hundred sixty-eight".