673408147 has 4 divisors (see below), whose sum is σ = 677128816. Its totient is φ = 669687480.

The previous prime is 673408121. The next prime is 673408187. The reversal of 673408147 is 741804376.

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

It is a cyclic number.

It is not a de Polignac number, because 673408147 - 2¹⁵ = 673375379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673408117) 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, 1860063 + ... + 1860424.

It is an arithmetic number, because the mean of its divisors is an integer number (169282204).

Almost surely, 2^673408147 is an apocalyptic number.

673408147 is a deficient number, since it is larger than the sum of its proper divisors (3720669).

673408147 is a wasteful number, since it uses less digits than its factorization.

673408147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720668.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 673408147 is about 25950.1088051669. The cubic root of 673408147 is about 876.5152073606.

The spelling of 673408147 in words is "six hundred seventy-three million, four hundred eight thousand, one hundred forty-seven".