667714653 has 6 divisors (see below), whose sum is σ = 964476734. Its totient is φ = 445143096.

The previous prime is 667714651. The next prime is 667714669. The reversal of 667714653 is 356417766.

667714653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 548402724 + 119311929 = 23418^2 + 10923^2 .

It is not a de Polignac number, because 667714653 - 2¹ = 667714651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667714599 and 667714608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667714651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37095250 + ... + 37095267.

Almost surely, 2^667714653 is an apocalyptic number.

It is an amenable number.

667714653 is a deficient number, since it is larger than the sum of its proper divisors (296762081).

667714653 is a wasteful number, since it uses less digits than its factorization.

667714653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74190523 (or 74190520 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 667714653 is about 25840.1751735548. The cubic root of 667714653 is about 874.0379752816.

The spelling of 667714653 in words is "six hundred sixty-seven million, seven hundred fourteen thousand, six hundred fifty-three".