80765263 has 4 divisors (see below), whose sum is σ = 80896360. Its totient is φ = 80634168.

The previous prime is 80765239. The next prime is 80765303. The reversal of 80765263 is 36256708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80765263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80765563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64620 + ... + 65857.

It is an arithmetic number, because the mean of its divisors is an integer number (20224090).

Almost surely, 2^80765263 is an apocalyptic number.

80765263 is a deficient number, since it is larger than the sum of its proper divisors (131097).

80765263 is a wasteful number, since it uses less digits than its factorization.

80765263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131096.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 80765263 is about 8986.9495937164. The cubic root of 80765263 is about 432.2565045463.

The spelling of 80765263 in words is "eighty million, seven hundred sixty-five thousand, two hundred sixty-three".