802065650 has 24 divisors (see below), whose sum is σ = 1532165700. Its totient is φ = 312154560.

The previous prime is 802065631. The next prime is 802065653. The reversal of 802065650 is 56560208.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 429691441 + 372374209 = 20729^2 + 19297^2 .

It is not an unprimeable number, because it can be changed into a prime (802065653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214925 + ... + 218624.

Almost surely, 2^802065650 is an apocalyptic number.

802065650 is a deficient number, since it is larger than the sum of its proper divisors (730100050).

802065650 is a wasteful number, since it uses less digits than its factorization.

802065650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433598 (or 433593 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 802065650 is about 28320.7635843386. The cubic root of 802065650 is about 929.1160715232.

The spelling of 802065650 in words is "eight hundred two million, sixty-five thousand, six hundred fifty".