667245353 has 4 divisors (see below), whose sum is σ = 673366980. Its totient is φ = 661123728.

The previous prime is 667245343. The next prime is 667245367. The reversal of 667245353 is 353542766.

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 607770409 + 59474944 = 24653^2 + 7712^2 .

It is a cyclic number.

It is not a de Polignac number, because 667245353 - 2²⁸ = 398809897 is a prime.

It is a super-2 number, since 2×667245353² = 890432722200189218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667245353.

It is not an unprimeable number, because it can be changed into a prime (667245343) 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, 3060650 + ... + 3060867.

It is an arithmetic number, because the mean of its divisors is an integer number (168341745).

Almost surely, 2^667245353 is an apocalyptic number.

It is an amenable number.

667245353 is a deficient number, since it is larger than the sum of its proper divisors (6121627).

667245353 is a wasteful number, since it uses less digits than its factorization.

667245353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121626.

The product of its digits is 453600, while the sum is 41.

The square root of 667245353 is about 25831.0927565986. The cubic root of 667245353 is about 873.8331561739.

It can be divided in two parts, 6672 and 45353, that added together give a palindrome (52025).

The spelling of 667245353 in words is "six hundred sixty-seven million, two hundred forty-five thousand, three hundred fifty-three".