662491267 has 8 divisors (see below), whose sum is σ = 665627040. Its totient is φ = 659362560.

The previous prime is 662491237. The next prime is 662491301. The reversal of 662491267 is 762194266.

It is a happy number.

662491267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 662491267 - 2²⁷ = 528273539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662491237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287773 + ... + 290065.

It is an arithmetic number, because the mean of its divisors is an integer number (83203380).

Almost surely, 2^662491267 is an apocalyptic number.

662491267 is a deficient number, since it is larger than the sum of its proper divisors (3135773).

662491267 is a wasteful number, since it uses less digits than its factorization.

662491267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533.

The product of its digits is 217728, while the sum is 43.

The square root of 662491267 is about 25738.9057071197. The cubic root of 662491267 is about 871.7528701497.

The spelling of 662491267 in words is "six hundred sixty-two million, four hundred ninety-one thousand, two hundred sixty-seven".