673454401 has 3 divisors (see below), whose sum is σ = 673480353. Its totient is φ = 673428450.

The previous prime is 673454389. The next prime is 673454423. The reversal of 673454401 is 104454376.

The square root of 673454401 is 25951.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 673454401 - 2¹⁵ = 673421633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673404401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12976 + ... + 38926.

It is an arithmetic number, because the mean of its divisors is an integer number (224493451).

Almost surely, 2^673454401 is an apocalyptic number.

673454401 is the 25951-st square number.

673454401 is the 12976-th centered octagonal number.

It is an amenable number.

673454401 is a deficient number, since it is larger than the sum of its proper divisors (25952).

673454401 is an frugal number, since it uses more digits than its factorization.

673454401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51902 (or 25951 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The cubic root of 673454401 is about 876.5352751339.

The spelling of 673454401 in words is "six hundred seventy-three million, four hundred fifty-four thousand, four hundred one".