667774334 has 8 divisors (see below), whose sum is σ = 1009308168. Its totient is φ = 331338280.

The previous prime is 667774333. The next prime is 667774351. The reversal of 667774334 is 433477766.

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

It is a super-2 number, since 2×667774334² = 891845122298287112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667774333) 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, 1274117 + ... + 1274640.

It is an arithmetic number, because the mean of its divisors is an integer number (126163521).

Almost surely, 2^667774334 is an apocalyptic number.

667774334 is a deficient number, since it is larger than the sum of its proper divisors (341533834).

667774334 is a wasteful number, since it uses less digits than its factorization.

667774334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548890.

The product of its digits is 1778112, while the sum is 47.

The square root of 667774334 is about 25841.3299580343. The cubic root of 667774334 is about 874.0640153004.

The spelling of 667774334 in words is "six hundred sixty-seven million, seven hundred seventy-four thousand, three hundred thirty-four".