673646715 has 48 divisors (see below), whose sum is σ = 1338524928. Its totient is φ = 307015488.

The previous prime is 673646711. The next prime is 673646741. The reversal of 673646715 is 517646376.

It is not a de Polignac number, because 673646715 - 2² = 673646711 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (673646711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106224 + ... + 112386.

It is an arithmetic number, because the mean of its divisors is an integer number (27885936).

Almost surely, 2^673646715 is an apocalyptic number.

673646715 is a deficient number, since it is larger than the sum of its proper divisors (664878213).

673646715 is a wasteful number, since it uses less digits than its factorization.

673646715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528 (or 6525 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 673646715 is about 25954.7050647855. The cubic root of 673646715 is about 876.6187026886.

The spelling of 673646715 in words is "six hundred seventy-three million, six hundred forty-six thousand, seven hundred fifteen".