674660377 has 4 divisors (see below), whose sum is σ = 674836020. Its totient is φ = 674484736.

The previous prime is 674660333. The next prime is 674660387. The reversal of 674660377 is 773066476.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184525056 + 490135321 = 13584^2 + 22139^2 .

It is a cyclic number.

It is not a de Polignac number, because 674660377 - 2¹¹ = 674658329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674660387) 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, 81928 + ... + 89785.

It is an arithmetic number, because the mean of its divisors is an integer number (168709005).

Almost surely, 2^674660377 is an apocalyptic number.

It is an amenable number.

674660377 is a deficient number, since it is larger than the sum of its proper divisors (175643).

674660377 is a wasteful number, since it uses less digits than its factorization.

674660377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175642.

The product of its (nonzero) digits is 889056, while the sum is 46.

The square root of 674660377 is about 25974.2252434986. The cubic root of 674660377 is about 877.0581762380.

The spelling of 674660377 in words is "six hundred seventy-four million, six hundred sixty thousand, three hundred seventy-seven".