667474027 has 8 divisors (see below), whose sum is σ = 733888512. Its totient is φ = 602015400.

The previous prime is 667474019. The next prime is 667474061. The reversal of 667474027 is 720474766.

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 667474027 - 2³ = 667474019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667474097) 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, 237499 + ... + 240292.

It is an arithmetic number, because the mean of its divisors is an integer number (91736064).

Almost surely, 2^667474027 is an apocalyptic number.

667474027 is a deficient number, since it is larger than the sum of its proper divisors (66414485).

667474027 is a wasteful number, since it uses less digits than its factorization.

667474027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477929.

The product of its (nonzero) digits is 395136, while the sum is 43.

The square root of 667474027 is about 25835.5187097143. The cubic root of 667474027 is about 873.9329695830.

The spelling of 667474027 in words is "six hundred sixty-seven million, four hundred seventy-four thousand, twenty-seven".