666675833 has 4 divisors (see below), whose sum is σ = 666828708. Its totient is φ = 666522960.

The previous prime is 666675803. The next prime is 666675883. The reversal of 666675833 is 338576666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 409779049 + 256896784 = 20243^2 + 16028^2 .

It is a cyclic number.

It is not a de Polignac number, because 666675833 - 2¹² = 666671737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666675803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69698 + ... + 78683.

It is an arithmetic number, because the mean of its divisors is an integer number (166707177).

Almost surely, 2^666675833 is an apocalyptic number.

It is an amenable number.

666675833 is a deficient number, since it is larger than the sum of its proper divisors (152875).

666675833 is a wasteful number, since it uses less digits than its factorization.

666675833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152874.

The product of its digits is 3265920, while the sum is 50.

The square root of 666675833 is about 25820.0664793877. The cubic root of 666675833 is about 873.5844684828.

The spelling of 666675833 in words is "six hundred sixty-six million, six hundred seventy-five thousand, eight hundred thirty-three".