674541 has 32 divisors (see below), whose sum is σ = 1182720. Its totient is φ = 371952.

The previous prime is 674537. The next prime is 674551. The reversal of 674541 is 145476.

674541 is a nontrivial binomial coefficient, being equal to C(1162, 2).

It is not a de Polignac number, because 674541 - 2² = 674537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8086 + ... + 8168.

It is an arithmetic number, because the mean of its divisors is an integer number (36960).

2⁶⁷⁴⁵⁴¹ is an apocalyptic number.

674541 is the 1161-st triangular number and also the 581-st hexagonal number.

It is an amenable number.

674541 is a deficient number, since it is larger than the sum of its proper divisors (508179).

674541 is a wasteful number, since it uses less digits than its factorization.

674541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 136 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 674541 is about 821.3044502497. The cubic root of 674541 is about 87.7006443172.

It can be divided in two parts, 6745 and 41, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 674541 in words is "six hundred seventy-four thousand, five hundred forty-one".