673408104437 has 4 divisors (see below), whose sum is σ = 673477616460. Its totient is φ = 673338592416.

The previous prime is 673408104427. The next prime is 673408104491. The reversal of 673408104437 is 734401804376.

673408104437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 244076509681 + 429331594756 = 494041^2 + 655234^2 .

It is a cyclic number.

It is not a de Polignac number, because 673408104437 - 2¹² = 673408100341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 673408104391 and 673408104400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673408104427) 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, 34741478 + ... + 34760855.

It is an arithmetic number, because the mean of its divisors is an integer number (168369404115).

Almost surely, 2^673408104437 is an apocalyptic number.

It is an amenable number.

673408104437 is a deficient number, since it is larger than the sum of its proper divisors (69512023).

673408104437 is an equidigital number, since it uses as much as digits as its factorization.

673408104437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69512022.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 673408104437 in words is "six hundred seventy-three billion, four hundred eight million, one hundred four thousand, four hundred thirty-seven".