674977 has 2 divisors, whose sum is σ = 674978. Its totient is φ = 674976.

The previous prime is 674957. The next prime is 674987. The reversal of 674977 is 779476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 28561 = 804^2 + 169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (674957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337488 + 337489.

It is an arithmetic number, because the mean of its divisors is an integer number (337489).

2⁶⁷⁴⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

674977 is a deficient number, since it is larger than the sum of its proper divisors (1).

674977 is an equidigital number, since it uses as much as digits as its factorization.

674977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 40.

The square root of 674977 is about 821.5698387843. The cubic root of 674977 is about 87.7195358031.

The spelling of 674977 in words is "six hundred seventy-four thousand, nine hundred seventy-seven".