80616845 has 8 divisors (see below), whose sum is σ = 96880920. Its totient is φ = 64399680.

The previous prime is 80616827. The next prime is 80616871. The reversal of 80616845 is 54861608.

It can be written as a sum of positive squares in 4 ways, for example, as 1371241 + 79245604 = 1171^2 + 8902^2 .

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

It is not a de Polignac number, because 80616845 - 2⁸ = 80616589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80616799 and 80616808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7826 + ... + 14915.

It is an arithmetic number, because the mean of its divisors is an integer number (12110115).

Almost surely, 2^80616845 is an apocalyptic number.

It is an amenable number.

80616845 is a deficient number, since it is larger than the sum of its proper divisors (16264075).

80616845 is a wasteful number, since it uses less digits than its factorization.

80616845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23455.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 80616845 is about 8978.6883785996. The cubic root of 80616845 is about 431.9915639785.

The spelling of 80616845 in words is "eighty million, six hundred sixteen thousand, eight hundred forty-five".