667802233 has 24 divisors (see below), whose sum is σ = 800926152. Its totient is φ = 554770944.

The previous prime is 667802207. The next prime is 667802257. The reversal of 667802233 is 332208766.

It can be written as a sum of positive squares in 4 ways, for example, as 365459689 + 302342544 = 19117^2 + 17388^2 .

It is not a de Polignac number, because 667802233 - 2¹⁷ = 667671161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667802192 and 667802201.

It is not an unprimeable number, because it can be changed into a prime (664802233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610435 + ... + 611527.

It is an arithmetic number, because the mean of its divisors is an integer number (33371923).

Almost surely, 2^667802233 is an apocalyptic number.

It is an amenable number.

667802233 is a deficient number, since it is larger than the sum of its proper divisors (133123919).

667802233 is a wasteful number, since it uses less digits than its factorization.

667802233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1474 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 667802233 is about 25841.8697659438. The cubic root of 667802233 is about 874.0761876622.

The spelling of 667802233 in words is "six hundred sixty-seven million, eight hundred two thousand, two hundred thirty-three".