667700737 has 8 divisors (see below), whose sum is σ = 733291200. Its totient is φ = 602925360.

The previous prime is 667700729. The next prime is 667700743. The reversal of 667700737 is 737007766.

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 667700737 - 2³ = 667700729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667700693 and 667700702.

It is not an unprimeable number, because it can be changed into a prime (667700707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202053 + ... + 205330.

It is an arithmetic number, because the mean of its divisors is an integer number (91661400).

Almost surely, 2^667700737 is an apocalyptic number.

It is an amenable number.

667700737 is a deficient number, since it is larger than the sum of its proper divisors (65590463).

667700737 is a wasteful number, since it uses less digits than its factorization.

667700737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407543.

The product of its (nonzero) digits is 259308, while the sum is 43.

The square root of 667700737 is about 25839.9059015315. The cubic root of 667700737 is about 874.0319032283.

The spelling of 667700737 in words is "six hundred sixty-seven million, seven hundred thousand, seven hundred thirty-seven".