673433401 has 4 divisors (see below), whose sum is σ = 673485904. Its totient is φ = 673380900.

The previous prime is 673433311. The next prime is 673433419. The reversal of 673433401 is 104334376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673433401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673433471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186 + ... + 37396.

It is an arithmetic number, because the mean of its divisors is an integer number (168371476).

Almost surely, 2^673433401 is an apocalyptic number.

It is an amenable number.

673433401 is a deficient number, since it is larger than the sum of its proper divisors (52503).

673433401 is a wasteful number, since it uses less digits than its factorization.

673433401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52502.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 673433401 is about 25950.5953881602. The cubic root of 673433401 is about 876.5261641819.

Adding to 673433401 its reverse (104334376), we get a palindrome (777767777).

The spelling of 673433401 in words is "six hundred seventy-three million, four hundred thirty-three thousand, four hundred one".