673400377 has 8 divisors (see below), whose sum is σ = 728370440. Its totient is φ = 618883200.

The previous prime is 673400341. The next prime is 673400389. The reversal of 673400377 is 773004376.

It can be written as a sum of positive squares in 4 ways, for example, as 346369321 + 327031056 = 18611^2 + 18084^2 .

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

It is not a de Polignac number, because 673400377 - 2⁷ = 673400249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673400177) 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, 110124 + ... + 116077.

It is an arithmetic number, because the mean of its divisors is an integer number (91046305).

Almost surely, 2^673400377 is an apocalyptic number.

It is an amenable number.

673400377 is a deficient number, since it is larger than the sum of its proper divisors (54970063).

673400377 is a wasteful number, since it uses less digits than its factorization.

673400377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226443.

The product of its (nonzero) digits is 74088, while the sum is 37.

The square root of 673400377 is about 25949.9590943801. The cubic root of 673400377 is about 876.5118361760.

The spelling of 673400377 in words is "six hundred seventy-three million, four hundred thousand, three hundred seventy-seven".