667576349 has 8 divisors (see below), whose sum is σ = 771104448. Its totient is φ = 571188160.

The previous prime is 667576339. The next prime is 667576363. The reversal of 667576349 is 943675766.

667576349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 667576349 - 2¹² = 667572253 is a prime.

It is a super-4 number, since 4×667576349⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667576349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667576339) 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, 1784777 + ... + 1785150.

It is an arithmetic number, because the mean of its divisors is an integer number (96388056).

Almost surely, 2^667576349 is an apocalyptic number.

It is an amenable number.

667576349 is a deficient number, since it is larger than the sum of its proper divisors (103528099).

667576349 is a wasteful number, since it uses less digits than its factorization.

667576349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569955.

The product of its digits is 5715360, while the sum is 53.

The square root of 667576349 is about 25837.4988921142. The cubic root of 667576349 is about 873.9776245042.

The spelling of 667576349 in words is "six hundred sixty-seven million, five hundred seventy-six thousand, three hundred forty-nine".