674640177 has 8 divisors (see below), whose sum is σ = 899662560. Its totient is φ = 449688960.

The previous prime is 674640157. The next prime is 674640181. The reversal of 674640177 is 771046476.

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

It is not a de Polignac number, because 674640177 - 2¹⁴ = 674623793 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (674640107) 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, 10977 + ... + 38337.

It is an arithmetic number, because the mean of its divisors is an integer number (112457820).

Almost surely, 2^674640177 is an apocalyptic number.

It is an amenable number.

674640177 is a deficient number, since it is larger than the sum of its proper divisors (225022383).

674640177 is a wasteful number, since it uses less digits than its factorization.

674640177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35583.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 674640177 is about 25973.8363935711. The cubic root of 674640177 is about 877.0494228204.

The spelling of 674640177 in words is "six hundred seventy-four million, six hundred forty thousand, one hundred seventy-seven".