80655763 has 4 divisors (see below), whose sum is σ = 80899768. Its totient is φ = 80411760.

The previous prime is 80655727. The next prime is 80655793. The reversal of 80655763 is 36755608.

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

It is a cyclic number.

It is not a de Polignac number, because 80655763 - 2⁹ = 80655251 is a prime.

It is a super-2 number, since 2×80655763² = 13010704210224338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80655793) 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, 121506 + ... + 122167.

It is an arithmetic number, because the mean of its divisors is an integer number (20224942).

Almost surely, 2^80655763 is an apocalyptic number.

80655763 is a deficient number, since it is larger than the sum of its proper divisors (244005).

80655763 is a wasteful number, since it uses less digits than its factorization.

80655763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244004.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 80655763 is about 8980.8553601536. The cubic root of 80655763 is about 432.0610678273.

It can be divided in two parts, 80655 and 763, that added together give a palindrome (81418).

The spelling of 80655763 in words is "eighty million, six hundred fifty-five thousand, seven hundred sixty-three".