674407 has 4 divisors (see below), whose sum is σ = 714096. Its totient is φ = 634720.

The previous prime is 674393. The next prime is 674419. The reversal of 674407 is 704476.

674407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 674407 - 2¹⁵ = 641639 is a prime.

It is a Duffinian number.

674407 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675407) 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, 19819 + ... + 19852.

It is an arithmetic number, because the mean of its divisors is an integer number (178524).

2⁶⁷⁴⁴⁰⁷ is an apocalyptic number.

674407 is a deficient number, since it is larger than the sum of its proper divisors (39689).

674407 is a wasteful number, since it uses less digits than its factorization.

674407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39688.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 674407 is about 821.2228686538. Note that the first 3 decimals coincide. The cubic root of 674407 is about 87.6948365829.

It can be divided in two parts, 674 and 407, that added together give a triangular number (1081 = T₄₆).

The spelling of 674407 in words is "six hundred seventy-four thousand, four hundred seven".