649070 has 16 divisors (see below), whose sum is σ = 1194048. Its totient is φ = 253920.

The previous prime is 649069. The next prime is 649073. The reversal of 649070 is 70946.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649070.

It is not an unprimeable number, because it can be changed into a prime (649073) by changing a digit.

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, 221 + ... + 1160.

It is an arithmetic number, because the mean of its divisors is an integer number (74628).

2⁶⁴⁹⁰⁷⁰ is an apocalyptic number.

649070 is a deficient number, since it is larger than the sum of its proper divisors (544978).

649070 is a wasteful number, since it uses less digits than its factorization.

649070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 649070 is about 805.6488068631. The cubic root of 649070 is about 86.5825778734.

The spelling of 649070 in words is "six hundred forty-nine thousand, seventy".