80678753 has 8 divisors (see below), whose sum is σ = 85733640. Its totient is φ = 75658240.

The previous prime is 80678747. The next prime is 80678809. The reversal of 80678753 is 35787608.

It can be written as a sum of positive squares in 4 ways, for example, as 8479744 + 72199009 = 2912^2 + 8497^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80678753 - 2²² = 76484449 is a prime.

It is a super-2 number, since 2×80678753² = 13018122371270018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80678713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3668 + ... + 13221.

It is an arithmetic number, because the mean of its divisors is an integer number (10716705).

Almost surely, 2^80678753 is an apocalyptic number.

It is an amenable number.

80678753 is a deficient number, since it is larger than the sum of its proper divisors (5054887).

80678753 is a wasteful number, since it uses less digits than its factorization.

80678753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17187.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 80678753 is about 8982.1352138564. The cubic root of 80678753 is about 432.1021152779.

The spelling of 80678753 in words is "eighty million, six hundred seventy-eight thousand, seven hundred fifty-three".