80682261 has 16 divisors (see below), whose sum is σ = 117642240. Its totient is φ = 48779120.

The previous prime is 80682257. The next prime is 80682293. The reversal of 80682261 is 16228608.

It is a cyclic number.

It is not a de Polignac number, because 80682261 - 2² = 80682257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80682241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11860 + ... + 17378.

It is an arithmetic number, because the mean of its divisors is an integer number (7352640).

Almost surely, 2^80682261 is an apocalyptic number.

It is an amenable number.

80682261 is a deficient number, since it is larger than the sum of its proper divisors (36959979).

80682261 is a wasteful number, since it uses less digits than its factorization.

80682261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 80682261 is about 8982.3304882419. The cubic root of 80682261 is about 432.1083779439.

The spelling of 80682261 in words is "eighty million, six hundred eighty-two thousand, two hundred sixty-one".