673949377 has 8 divisors (see below), whose sum is σ = 713909376. Its totient is φ = 634024512.

The previous prime is 673949371. The next prime is 673949429. The reversal of 673949377 is 773949376.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 673949377 - 2¹⁹ = 673425089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673949371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37828 + ... + 52714.

It is an arithmetic number, because the mean of its divisors is an integer number (89238672).

Almost surely, 2^673949377 is an apocalyptic number.

It is an amenable number.

673949377 is a deficient number, since it is larger than the sum of its proper divisors (39959999).

673949377 is a wasteful number, since it uses less digits than its factorization.

673949377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17567.

The product of its digits is 6001128, while the sum is 55.

The square root of 673949377 is about 25960.5349906353. The cubic root of 673949377 is about 876.7499680531.

Subtracting 673949377 from its reverse (773949376), we obtain a palindrome (99999999).

The spelling of 673949377 in words is "six hundred seventy-three million, nine hundred forty-nine thousand, three hundred seventy-seven".