674557 has 8 divisors (see below), whose sum is σ = 764960. Its totient is φ = 589680.

The previous prime is 674551. The next prime is 674563. The reversal of 674557 is 755476.

It is an interprime number because it is at equal distance from previous prime (674551) and next prime (674563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674557 - 2¹⁵ = 641789 is a prime.

It is a Duffinian number.

674557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119 + ... + 1612.

It is an arithmetic number, because the mean of its divisors is an integer number (95620).

2⁶⁷⁴⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

674557 is a deficient number, since it is larger than the sum of its proper divisors (90403).

674557 is a wasteful number, since it uses less digits than its factorization.

674557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its digits is 29400, while the sum is 34.

The square root of 674557 is about 821.3141907942. The cubic root of 674557 is about 87.7013377266.

It can be divided in two parts, 67 and 4557, that added together give a square (4624 = 68²).

The spelling of 674557 in words is "six hundred seventy-four thousand, five hundred fifty-seven".