673401366 has 24 divisors (see below), whose sum is σ = 1591676424. Its totient is φ = 204060960.

The previous prime is 673401359. The next prime is 673401367. The reversal of 673401366 is 663104376.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 673401366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673401367) 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 11 ways as a sum of consecutive naturals, for example, 1700311 + ... + 1700706.

It is an arithmetic number, because the mean of its divisors is an integer number (66319851).

Almost surely, 2^673401366 is an apocalyptic number.

673401366 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

673401366 is an abundant number, since it is smaller than the sum of its proper divisors (918275058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673401366 is a wasteful number, since it uses less digits than its factorization.

673401366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401036 (or 3401033 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 673401366 is about 25949.9781502798. The cubic root of 673401366 is about 876.5122652768.

The spelling of 673401366 in words is "six hundred seventy-three million, four hundred one thousand, three hundred sixty-six".