673786399 has 8 divisors (see below), whose sum is σ = 791581392. Its totient is φ = 565415040.

The previous prime is 673786369. The next prime is 673786429. The reversal of 673786399 is 993687376.

It is an interprime number because it is at equal distance from previous prime (673786369) and next prime (673786429).

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 673786399 - 2⁵ = 673786367 is a prime.

It is a super-2 number, since 2×673786399² = 907976222954774402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673786349) 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, 2355754 + ... + 2356039.

It is an arithmetic number, because the mean of its divisors is an integer number (98947674).

Almost surely, 2^673786399 is an apocalyptic number.

673786399 is a deficient number, since it is larger than the sum of its proper divisors (117794993).

673786399 is a wasteful number, since it uses less digits than its factorization.

673786399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711817.

The product of its digits is 10287648, while the sum is 58.

The square root of 673786399 is about 25957.3958439594. The cubic root of 673786399 is about 876.6792889186.

The spelling of 673786399 in words is "six hundred seventy-three million, seven hundred eighty-six thousand, three hundred ninety-nine".