673018785 has 12 divisors (see below), whose sum is σ = 1166565972. Its totient is φ = 358943328.

The previous prime is 673018777. The next prime is 673018793. The reversal of 673018785 is 587810376.

It is an interprime number because it is at equal distance from previous prime (673018777) and next prime (673018793).

It can be written as a sum of positive squares in 2 ways, for example, as 497111616 + 175907169 = 22296^2 + 13263^2 .

It is not a de Polignac number, because 673018785 - 2³ = 673018777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14955973 = 673018785 / (6 + 7 + 3 + 0 + 1 + 8 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 673018785.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7477942 + ... + 7478031.

It is an arithmetic number, because the mean of its divisors is an integer number (97213831).

Almost surely, 2^673018785 is an apocalyptic number.

It is an amenable number.

673018785 is a deficient number, since it is larger than the sum of its proper divisors (493547187).

673018785 is a wasteful number, since it uses less digits than its factorization.

673018785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14955984 (or 14955981 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 673018785 is about 25942.6055938874. The cubic root of 673018785 is about 876.3462422177.

The spelling of 673018785 in words is "six hundred seventy-three million, eighteen thousand, seven hundred eighty-five".