80576857 has 2 divisors, whose sum is σ = 80576858. Its totient is φ = 80576856.

The previous prime is 80576851. The next prime is 80576863. The reversal of 80576857 is 75867508.

It is a balanced prime because it is at equal distance from previous prime (80576851) and next prime (80576863).

It can be written as a sum of positive squares in only one way, i.e., 80568576 + 8281 = 8976^2 + 91^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80576857 is a prime.

It is not a weakly prime, because it can be changed into another prime (80576851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40288428 + 40288429.

It is an arithmetic number, because the mean of its divisors is an integer number (40288429).

Almost surely, 2^80576857 is an apocalyptic number.

It is an amenable number.

80576857 is a deficient number, since it is larger than the sum of its proper divisors (1).

80576857 is an equidigital number, since it uses as much as digits as its factorization.

80576857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 80576857 is about 8976.4612737983. The cubic root of 80576857 is about 431.9201259077.

The spelling of 80576857 in words is "eighty million, five hundred seventy-six thousand, eight hundred fifty-seven".