80650 has 12 divisors (see below), whose sum is σ = 150102. Its totient is φ = 32240.

The previous prime is 80629. The next prime is 80651. The reversal of 80650 is 5608.

It can be written as a sum of positive squares in 3 ways, for example, as 64009 + 16641 = 253^2 + 129^2 .

It is not an unprimeable number, because it can be changed into a prime (80651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757 + ... + 856.

2⁸⁰⁶⁵⁰ is an apocalyptic number.

80650 is a deficient number, since it is larger than the sum of its proper divisors (69452).

80650 is a wasteful number, since it uses less digits than its factorization.

80650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 80650 is about 283.9894364233. The cubic root of 80650 is about 43.2050777068.

The spelling of 80650 in words is "eighty thousand, six hundred fifty".