673456877 has 2 divisors, whose sum is σ = 673456878. Its totient is φ = 673456876.

The previous prime is 673456873. The next prime is 673456913. The reversal of 673456877 is 778654376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673350601 + 106276 = 25949^2 + 326^2 .

It is a cyclic number.

It is not a de Polignac number, because 673456877 - 2² = 673456873 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673456871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336728438 + 336728439.

It is an arithmetic number, because the mean of its divisors is an integer number (336728439).

Almost surely, 2^673456877 is an apocalyptic number.

It is an amenable number.

673456877 is a deficient number, since it is larger than the sum of its proper divisors (1).

673456877 is an equidigital number, since it uses as much as digits as its factorization.

673456877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5927040, while the sum is 53.

The square root of 673456877 is about 25951.0477052469. The cubic root of 673456877 is about 876.5363493460.

The spelling of 673456877 in words is "six hundred seventy-three million, four hundred fifty-six thousand, eight hundred seventy-seven".