649347 has 8 divisors (see below), whose sum is σ = 870144. Its totient is φ = 430728.

The previous prime is 649321. The next prime is 649361. The reversal of 649347 is 743946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649347 - 2⁶ = 649283 is a prime.

It is a d-powerful number, because it can be written as 6³ + 4² + 3¹² + 9 + 4² + 7⁶ .

It is not an unprimeable number, because it can be changed into a prime (649307) 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, 378 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (108768).

2⁶⁴⁹³⁴⁷ is an apocalyptic number.

649347 is a deficient number, since it is larger than the sum of its proper divisors (220797).

649347 is a wasteful number, since it uses less digits than its factorization.

649347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its digits is 18144, while the sum is 33.

The square root of 649347 is about 805.8206996597. The cubic root of 649347 is about 86.5948929103.

The spelling of 649347 in words is "six hundred forty-nine thousand, three hundred forty-seven".