649097 has 8 divisors (see below), whose sum is σ = 691200. Its totient is φ = 607824.

The previous prime is 649093. The next prime is 649123. The reversal of 649097 is 790946.

It is a happy number.

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 649097 - 2² = 649093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2279 + ... + 2547.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2⁶⁴⁹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

649097 is a deficient number, since it is larger than the sum of its proper divisors (42103).

649097 is a wasteful number, since it uses less digits than its factorization.

649097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 649097 is about 805.6655633698. The cubic root of 649097 is about 86.5837784101.

The spelling of 649097 in words is "six hundred forty-nine thousand, ninety-seven".