667407374 has 8 divisors (see below), whose sum is σ = 1003726080. Its totient is φ = 332832016.

The previous prime is 667407373. The next prime is 667407383. The reversal of 667407374 is 473704766.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667407371) 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, 434879 + ... + 436410.

It is an arithmetic number, because the mean of its divisors is an integer number (125465760).

Almost surely, 2^667407374 is an apocalyptic number.

667407374 is a deficient number, since it is larger than the sum of its proper divisors (336318706).

667407374 is a wasteful number, since it uses less digits than its factorization.

667407374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871674.

The product of its (nonzero) digits is 592704, while the sum is 44.

The square root of 667407374 is about 25834.2287285686. The cubic root of 667407374 is about 873.9038787165.

The spelling of 667407374 in words is "six hundred sixty-seven million, four hundred seven thousand, three hundred seventy-four".