674778111 has 16 divisors (see below), whose sum is σ = 1028661504. Its totient is φ = 385426944.

The previous prime is 674778101. The next prime is 674778113. The reversal of 674778111 is 111877476.

It is not a de Polignac number, because 674778111 - 2⁶ = 674778047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674778113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60756 + ... + 70998.

It is an arithmetic number, because the mean of its divisors is an integer number (64291344).

Almost surely, 2^674778111 is an apocalyptic number.

674778111 is a deficient number, since it is larger than the sum of its proper divisors (353883393).

674778111 is a wasteful number, since it uses less digits than its factorization.

674778111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13390.

The product of its digits is 65856, while the sum is 42.

The square root of 674778111 is about 25976.4915067451. The cubic root of 674778111 is about 877.1091913190.

The spelling of 674778111 in words is "six hundred seventy-four million, seven hundred seventy-eight thousand, one hundred eleven".