674981 has 4 divisors (see below), whose sum is σ = 704352. Its totient is φ = 645612.

The previous prime is 674977. The next prime is 674987. The reversal of 674981 is 189476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 674981 - 2² = 674977 is a prime.

It is a super-2 number, since 2×674981² = 911198700722, which contains 22 as substring.

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 (674987) 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, 14651 + ... + 14696.

It is an arithmetic number, because the mean of its divisors is an integer number (176088).

2⁶⁷⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

674981 is a deficient number, since it is larger than the sum of its proper divisors (29371).

674981 is a wasteful number, since it uses less digits than its factorization.

674981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370.

The product of its digits is 12096, while the sum is 35.

The square root of 674981 is about 821.5722731446. The cubic root of 674981 is about 87.7197090818.

The spelling of 674981 in words is "six hundred seventy-four thousand, nine hundred eighty-one".