80605863 has 12 divisors (see below), whose sum is σ = 125387080. Its totient is φ = 49603536.

The previous prime is 80605853. The next prime is 80605867. The reversal of 80605863 is 36850608.

It is not a de Polignac number, because 80605863 - 2⁵ = 80605831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80605867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344353 + ... + 344586.

Almost surely, 2^80605863 is an apocalyptic number.

80605863 is a deficient number, since it is larger than the sum of its proper divisors (44781217).

80605863 is a wasteful number, since it uses less digits than its factorization.

80605863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688958 (or 688955 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 80605863 is about 8978.0767985131. The cubic root of 80605863 is about 431.9719471238.

The spelling of 80605863 in words is "eighty million, six hundred five thousand, eight hundred sixty-three".