674245 has 32 divisors (see below), whose sum is σ = 1016064. Its totient is φ = 422400.

The previous prime is 674239. The next prime is 674249. The reversal of 674245 is 542476.

674245 = 12² + 13² + ... + 126².

It is not a de Polignac number, because 674245 - 2⁷ = 674117 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 (674249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16425 + ... + 16465.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2⁶⁷⁴²⁴⁵ is an apocalyptic number.

674245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

674245 is a deficient number, since it is larger than the sum of its proper divisors (341819).

674245 is a wasteful number, since it uses less digits than its factorization.

674245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93.

The product of its digits is 6720, while the sum is 28.

The square root of 674245 is about 821.1242293344. The cubic root of 674245 is about 87.6878142649.

Subtracting from 674245 its reverse (542476), we obtain a square (131769 = 363²).

It can be divided in two parts, 674 and 245, that added together give a palindrome (919).

The spelling of 674245 in words is "six hundred seventy-four thousand, two hundred forty-five".