667404370 has 8 divisors (see below), whose sum is σ = 1201327884. Its totient is φ = 266961744.

The previous prime is 667404359. The next prime is 667404373. The reversal of 667404370 is 73404766.

667404370 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 2 ways, for example, as 663629121 + 3775249 = 25761^2 + 1943^2 .

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

It is not an unprimeable number, because it can be changed into a prime (667404373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33370209 + ... + 33370228.

Almost surely, 2^667404370 is an apocalyptic number.

667404370 is a deficient number, since it is larger than the sum of its proper divisors (533923514).

667404370 is a wasteful number, since it uses less digits than its factorization.

667404370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66740444.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 667404370 is about 25834.1705885829. The cubic root of 667404370 is about 873.9025675677.

The spelling of 667404370 in words is "six hundred sixty-seven million, four hundred four thousand, three hundred seventy".