662371069 has 4 divisors (see below), whose sum is σ = 662478300. Its totient is φ = 662263840.

The previous prime is 662371067. The next prime is 662371081. The reversal of 662371069 is 960173266.

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 331604100 + 330766969 = 18210^2 + 18187^2 .

It is a cyclic number.

It is not a de Polignac number, because 662371069 - 2¹ = 662371067 is a prime.

It is a super-2 number, since 2×662371069² = 877470866096405522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662371067) 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, 43744 + ... + 56905.

It is an arithmetic number, because the mean of its divisors is an integer number (165619575).

Almost surely, 2^662371069 is an apocalyptic number.

It is an amenable number.

662371069 is a deficient number, since it is larger than the sum of its proper divisors (107231).

662371069 is a wasteful number, since it uses less digits than its factorization.

662371069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107230.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 662371069 is about 25736.5706534495. The cubic root of 662371069 is about 871.7001452840.

The spelling of 662371069 in words is "six hundred sixty-two million, three hundred seventy-one thousand, sixty-nine".