674399111 has 4 divisors (see below), whose sum is σ = 692626152. Its totient is φ = 656172072.

The previous prime is 674399101. The next prime is 674399113. The reversal of 674399111 is 111993476.

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

It is a cyclic number.

It is not a de Polignac number, because 674399111 - 2²² = 670204807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674399113) 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, 9113465 + ... + 9113538.

It is an arithmetic number, because the mean of its divisors is an integer number (173156538).

Almost surely, 2^674399111 is an apocalyptic number.

674399111 is a deficient number, since it is larger than the sum of its proper divisors (18227041).

674399111 is a wasteful number, since it uses less digits than its factorization.

674399111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18227040.

The product of its digits is 40824, while the sum is 41.

The square root of 674399111 is about 25969.1954245795. The cubic root of 674399111 is about 876.9449463943.

The spelling of 674399111 in words is "six hundred seventy-four million, three hundred ninety-nine thousand, one hundred eleven".