673464987 has 24 divisors (see below), whose sum is σ = 1081411968. Its totient is φ = 401068800.

The previous prime is 673464977. The next prime is 673464989. The reversal of 673464987 is 789464376.

It is a happy number.

It is not a de Polignac number, because 673464987 - 2¹⁰ = 673463963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673464989) 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 23 ways as a sum of consecutive naturals, for example, 89214 + ... + 96467.

It is an arithmetic number, because the mean of its divisors is an integer number (45058832).

Almost surely, 2^673464987 is an apocalyptic number.

673464987 is a deficient number, since it is larger than the sum of its proper divisors (407946981).

673464987 is a wasteful number, since it uses less digits than its factorization.

673464987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185731 (or 185728 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 673464987 is about 25951.2039605102. The cubic root of 673464987 is about 876.5398678496.

The spelling of 673464987 in words is "six hundred seventy-three million, four hundred sixty-four thousand, nine hundred eighty-seven".