649627 has 8 divisors (see below), whose sum is σ = 719280. Its totient is φ = 581760.

The previous prime is 649619. The next prime is 649631. The reversal of 649627 is 726946.

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 649627 - 2³ = 649619 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 649592 and 649601.

It is not an unprimeable number, because it can be changed into a prime (649657) 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, 399 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2⁶⁴⁹⁶²⁷ is an apocalyptic number.

649627 is a deficient number, since it is larger than the sum of its proper divisors (69653).

649627 is a wasteful number, since it uses less digits than its factorization.

649627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893.

The product of its digits is 18144, while the sum is 34.

The square root of 649627 is about 805.9944168541. The cubic root of 649627 is about 86.6073377643.

The spelling of 649627 in words is "six hundred forty-nine thousand, six hundred twenty-seven".