873666650 has 12 divisors (see below), whose sum is σ = 1625020062. Its totient is φ = 349466640.

The previous prime is 873666643. The next prime is 873666653. The reversal of 873666650 is 56666378.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 591997561 + 281669089 = 24331^2 + 16783^2 .

It is a junction number, because it is equal to n+sod(n) for n = 873666595 and 873666604.

It is not an unprimeable number, because it can be changed into a prime (873666653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8736617 + ... + 8736716.

Almost surely, 2^873666650 is an apocalyptic number.

873666650 is a deficient number, since it is larger than the sum of its proper divisors (751353412).

873666650 is a wasteful number, since it uses less digits than its factorization.

873666650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17473345 (or 17473340 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 873666650 is about 29557.8525945306. The cubic root of 873666650 is about 955.9795145380.

The spelling of 873666650 in words is "eight hundred seventy-three million, six hundred sixty-six thousand, six hundred fifty".