649327 has 4 divisors (see below), whose sum is σ = 742096. Its totient is φ = 556560.

The previous prime is 649321. The next prime is 649361. The reversal of 649327 is 723946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723946 = 2 ⋅361973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-649327 is a prime.

It is a d-powerful number, because it can be written as 6² + 4³ + 3¹² + 9 + 2⁷ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649321) 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, 46374 + ... + 46387.

It is an arithmetic number, because the mean of its divisors is an integer number (185524).

2⁶⁴⁹³²⁷ is an apocalyptic number.

649327 is a deficient number, since it is larger than the sum of its proper divisors (92769).

649327 is an equidigital number, since it uses as much as digits as its factorization.

649327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92768.

The product of its digits is 9072, while the sum is 31.

The square root of 649327 is about 805.8082898556. The cubic root of 649327 is about 86.5940038553.

The spelling of 649327 in words is "six hundred forty-nine thousand, three hundred twenty-seven".