673997077 has 8 divisors (see below), whose sum is σ = 726701976. Its totient is φ = 621414912.

The previous prime is 673997063. The next prime is 673997081. The reversal of 673997077 is 770799376.

It can be written as a sum of positive squares in 4 ways, for example, as 292615236 + 381381841 = 17106^2 + 19529^2 .

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 673997077 - 2⁷ = 673996949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673997087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19108 + ... + 41389.

It is an arithmetic number, because the mean of its divisors is an integer number (90837747).

Almost surely, 2^673997077 is an apocalyptic number.

It is an amenable number.

673997077 is a deficient number, since it is larger than the sum of its proper divisors (52704899).

673997077 is a wasteful number, since it uses less digits than its factorization.

673997077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61367.

The product of its (nonzero) digits is 3500658, while the sum is 55.

The square root of 673997077 is about 25961.4536765567. The cubic root of 673997077 is about 876.7706520927.

The spelling of 673997077 in words is "six hundred seventy-three million, nine hundred ninety-seven thousand, seventy-seven".