662849 has 4 divisors (see below), whose sum is σ = 723120. Its totient is φ = 602580.

The previous prime is 662843. The next prime is 662867. The reversal of 662849 is 948266.

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 662849 - 2⁴ = 662833 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 6² + 8 + 2¹⁷ + 4⁴ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662843) 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, 30119 + ... + 30140.

It is an arithmetic number, because the mean of its divisors is an integer number (180780).

2⁶⁶²⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

662849 is a deficient number, since it is larger than the sum of its proper divisors (60271).

662849 is a wasteful number, since it uses less digits than its factorization.

662849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60270.

The product of its digits is 20736, while the sum is 35.

The square root of 662849 is about 814.1553905736. The cubic root of 662849 is about 87.1909752044.

The spelling of 662849 in words is "six hundred sixty-two thousand, eight hundred forty-nine".