667537089 has 8 divisors (see below), whose sum is σ = 936894240. Its totient is φ = 421602336.

The previous prime is 667537063. The next prime is 667537163. The reversal of 667537089 is 980735766.

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

It is not a de Polignac number, because 667537089 - 2²³ = 659148481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667537009) 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, 5855532 + ... + 5855645.

It is an arithmetic number, because the mean of its divisors is an integer number (117111780).

Almost surely, 2^667537089 is an apocalyptic number.

It is an amenable number.

667537089 is a deficient number, since it is larger than the sum of its proper divisors (269357151).

667537089 is a wasteful number, since it uses less digits than its factorization.

667537089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11711199.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 667537089 is about 25836.7391324834. The cubic root of 667537089 is about 873.9604913657.

The spelling of 667537089 in words is "six hundred sixty-seven million, five hundred thirty-seven thousand, eighty-nine".