649115 has 8 divisors (see below), whose sum is σ = 784080. Its totient is φ = 515872.

The previous prime is 649093. The next prime is 649123. The reversal of 649115 is 511946.

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 649115 - 2⁸ = 648859 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (98010).

2⁶⁴⁹¹¹⁵ is an apocalyptic number.

649115 is a deficient number, since it is larger than the sum of its proper divisors (134965).

649115 is a wasteful number, since it uses less digits than its factorization.

649115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its digits is 1080, while the sum is 26.

The square root of 649115 is about 805.6767341807. The cubic root of 649115 is about 86.5845787495.

The spelling of 649115 in words is "six hundred forty-nine thousand, one hundred fifteen".