673952850 has 36 divisors (see below), whose sum is σ = 1810687866. Its totient is φ = 179720640.

The previous prime is 673952849. The next prime is 673952941. The reversal of 673952850 is 58259376.

It is a happy number.

673952850 is a `hidden beast` number, since 6 + 73 + 9 + 528 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 526840209 + 147112641 = 22953^2 + 12129^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 673952796 and 673952805.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 748387 + ... + 749286.

Almost surely, 2^673952850 is an apocalyptic number.

673952850 is an abundant number, since it is smaller than the sum of its proper divisors (1136735016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673952850 is a wasteful number, since it uses less digits than its factorization.

673952850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497691 (or 1497683 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 673952850 is about 25960.6018805420. The cubic root of 673952850 is about 876.7514740749.

The spelling of 673952850 in words is "six hundred seventy-three million, nine hundred fifty-two thousand, eight hundred fifty".