667413633 has 4 divisors (see below), whose sum is σ = 889884848. Its totient is φ = 444942420.

The previous prime is 667413623. The next prime is 667413647. The reversal of 667413633 is 336314766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 667413633 - 2¹² = 667409537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667413591 and 667413600.

It is not an unprimeable number, because it can be changed into a prime (667413623) 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, 111235603 + ... + 111235608.

It is an arithmetic number, because the mean of its divisors is an integer number (222471212).

Almost surely, 2^667413633 is an apocalyptic number.

It is an amenable number.

667413633 is a deficient number, since it is larger than the sum of its proper divisors (222471215).

667413633 is a wasteful number, since it uses less digits than its factorization.

667413633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222471214.

The product of its digits is 163296, while the sum is 39.

The square root of 667413633 is about 25834.3498660214. The cubic root of 667413633 is about 873.9066105549.

The spelling of 667413633 in words is "six hundred sixty-seven million, four hundred thirteen thousand, six hundred thirty-three".