649076 has 6 divisors (see below), whose sum is σ = 1135890. Its totient is φ = 324536.

The previous prime is 649073. The next prime is 649079. The reversal of 649076 is 670946.

It is an interprime number because it is at equal distance from previous prime (649073) and next prime (649079).

It can be written as a sum of positive squares in only one way, i.e., 422500 + 226576 = 650^2 + 476^2 .

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81131 + ... + 81138.

It is an arithmetic number, because the mean of its divisors is an integer number (189315).

2⁶⁴⁹⁰⁷⁶ is an apocalyptic number.

It is an amenable number.

649076 is a deficient number, since it is larger than the sum of its proper divisors (486814).

649076 is a wasteful number, since it uses less digits than its factorization.

649076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162273 (or 162271 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 649076 is about 805.6525305614. The cubic root of 649076 is about 86.5828446622.

The spelling of 649076 in words is "six hundred forty-nine thousand, seventy-six".