80688455 has 4 divisors (see below), whose sum is σ = 96826152. Its totient is φ = 64550760.

The previous prime is 80688431. The next prime is 80688473. The reversal of 80688455 is 55488608.

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

It is not a de Polignac number, because 80688455 - 2⁸ = 80688199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8068841 + ... + 8068850.

It is an arithmetic number, because the mean of its divisors is an integer number (24206538).

Almost surely, 2^80688455 is an apocalyptic number.

80688455 is a deficient number, since it is larger than the sum of its proper divisors (16137697).

80688455 is a wasteful number, since it uses less digits than its factorization.

80688455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16137696.

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 80688455 is about 8982.6752696510. The cubic root of 80688455 is about 432.1194353551.

The spelling of 80688455 in words is "eighty million, six hundred eighty-eight thousand, four hundred fifty-five".