674381 has 4 divisors (see below), whose sum is σ = 676092. Its totient is φ = 672672.

The previous prime is 674371. The next prime is 674393. The reversal of 674381 is 183476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 354025 + 320356 = 595^2 + 566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674381 is a prime.

It is a super-2 number, since 2×674381² = 909579466322, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674321) 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, 71 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (169023).

2⁶⁷⁴³⁸¹ is an apocalyptic number.

It is an amenable number.

674381 is a deficient number, since it is larger than the sum of its proper divisors (1711).

674381 is a wasteful number, since it uses less digits than its factorization.

674381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710.

The product of its digits is 4032, while the sum is 29.

The square root of 674381 is about 821.2070384501. The cubic root of 674381 is about 87.6937096200.

The spelling of 674381 in words is "six hundred seventy-four thousand, three hundred eighty-one".